Home / 730,663.20-1,008,362.50-408,386.88

Finding the Fourth Proportional to 730,663.20, 1,008,362.50 and 408,386.88

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Solution

The fourth proportional to 730,663.20, 1,008,362.50 and 408,386.88 is: 563,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,663.20 : 1,008,362.50 = 408,386.88 : x
  2. Step 2: Convert to fraction form
    730,663.20/1,008,362.50 = 408,386.88/x
  3. Step 3: Cross multiply
    730,663.20x = 1,008,362.50 × 408,386.88
  4. Step 4: Simplify right side
    730,663.20x = 411,802,015,284
  5. Step 5: Solve for x
    x = 411,802,015,284/730,663.20
  6. Step 6: Final answer
    x = 563,600.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.