Home / 745,125.19-1,117,767.77-318,705.30

Finding the Fourth Proportional to 745,125.19, 1,117,767.77 and 318,705.30

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Solution

The fourth proportional to 745,125.19, 1,117,767.77 and 318,705.30 is: 478,092.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,125.19 : 1,117,767.77 = 318,705.30 : x
  2. Step 2: Convert to fraction form
    745,125.19/1,117,767.77 = 318,705.30/x
  3. Step 3: Cross multiply
    745,125.19x = 1,117,767.77 × 318,705.30
  4. Step 4: Simplify right side
    745,125.19x = 356,238,512,468.18
  5. Step 5: Solve for x
    x = 356,238,512,468.18/745,125.19
  6. Step 6: Final answer
    x = 478,092.16

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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.