Home / 1,539,674.80-2,309,512.20-417,743.80

Finding the Fourth Proportional to 1,539,674.80, 2,309,512.20 and 417,743.80

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Solution

The fourth proportional to 1,539,674.80, 2,309,512.20 and 417,743.80 is: 626,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,674.80 : 2,309,512.20 = 417,743.80 : x
  2. Step 2: Convert to fraction form
    1,539,674.80/2,309,512.20 = 417,743.80/x
  3. Step 3: Cross multiply
    1,539,674.80x = 2,309,512.20 × 417,743.80
  4. Step 4: Simplify right side
    1,539,674.80x = 964,784,402,574.36
  5. Step 5: Solve for x
    x = 964,784,402,574.36/1,539,674.80
  6. Step 6: Final answer
    x = 626,615.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.