Home / 849,313.80-1,273,970.70-288,348.30

Finding the Fourth Proportional to 849,313.80, 1,273,970.70 and 288,348.30

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Solution

The fourth proportional to 849,313.80, 1,273,970.70 and 288,348.30 is: 432,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,313.80 : 1,273,970.70 = 288,348.30 : x
  2. Step 2: Convert to fraction form
    849,313.80/1,273,970.70 = 288,348.30/x
  3. Step 3: Cross multiply
    849,313.80x = 1,273,970.70 × 288,348.30
  4. Step 4: Simplify right side
    849,313.80x = 367,347,285,594.81
  5. Step 5: Solve for x
    x = 367,347,285,594.81/849,313.80
  6. Step 6: Final answer
    x = 432,522.45

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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.