Home / 646,945.30-970,547.55-542,487.70

Finding the Fourth Proportional to 646,945.30, 970,547.55 and 542,487.70

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Solution

The fourth proportional to 646,945.30, 970,547.55 and 542,487.70 is: 813,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,945.30 : 970,547.55 = 542,487.70 : x
  2. Step 2: Convert to fraction form
    646,945.30/970,547.55 = 542,487.70/x
  3. Step 3: Cross multiply
    646,945.30x = 970,547.55 × 542,487.70
  4. Step 4: Simplify right side
    646,945.30x = 526,510,108,140.14
  5. Step 5: Solve for x
    x = 526,510,108,140.14/646,945.30
  6. Step 6: Final answer
    x = 813,840.22

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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.