Home / 726,681.90-1,090,411.65-306,000.30

Finding the Fourth Proportional to 726,681.90, 1,090,411.65 and 306,000.30

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Solution

The fourth proportional to 726,681.90, 1,090,411.65 and 306,000.30 is: 459,164.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,681.90 : 1,090,411.65 = 306,000.30 : x
  2. Step 2: Convert to fraction form
    726,681.90/1,090,411.65 = 306,000.30/x
  3. Step 3: Cross multiply
    726,681.90x = 1,090,411.65 × 306,000.30
  4. Step 4: Simplify right side
    726,681.90x = 333,666,292,023.50
  5. Step 5: Solve for x
    x = 333,666,292,023.50/726,681.90
  6. Step 6: Final answer
    x = 459,164.17

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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.