Home / 1,543,646.80-2,315,470.20-421,715.80

Finding the Fourth Proportional to 1,543,646.80, 2,315,470.20 and 421,715.80

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Solution

The fourth proportional to 1,543,646.80, 2,315,470.20 and 421,715.80 is: 632,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,646.80 : 2,315,470.20 = 421,715.80 : x
  2. Step 2: Convert to fraction form
    1,543,646.80/2,315,470.20 = 421,715.80/x
  3. Step 3: Cross multiply
    1,543,646.80x = 2,315,470.20 × 421,715.80
  4. Step 4: Simplify right side
    1,543,646.80x = 976,470,367,769.16
  5. Step 5: Solve for x
    x = 976,470,367,769.16/1,543,646.80
  6. Step 6: Final answer
    x = 632,573.70

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Double scale
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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.