Home / 1,663,430.32-2,295,531.12-938,275.78

Finding the Fourth Proportional to 1,663,430.32, 2,295,531.12 and 938,275.78

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Solution

The fourth proportional to 1,663,430.32, 2,295,531.12 and 938,275.78 is: 1,294,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,430.32 : 2,295,531.12 = 938,275.78 : x
  2. Step 2: Convert to fraction form
    1,663,430.32/2,295,531.12 = 938,275.78/x
  3. Step 3: Cross multiply
    1,663,430.32x = 2,295,531.12 × 938,275.78
  4. Step 4: Simplify right side
    1,663,430.32x = 2,153,841,252,132.27
  5. Step 5: Solve for x
    x = 2,153,841,252,132.27/1,663,430.32
  6. Step 6: Final answer
    x = 1,294,819.04

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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.