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Finding the Fourth Proportional to 646,740.20, 970,547.70 and 362,430.20

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Solution

The fourth proportional to 646,740.20, 970,547.70 and 362,430.20 is: 543,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,740.20 : 970,547.70 = 362,430.20 : x
  2. Step 2: Convert to fraction form
    646,740.20/970,547.70 = 362,430.20/x
  3. Step 3: Cross multiply
    646,740.20x = 970,547.70 × 362,430.20
  4. Step 4: Simplify right side
    646,740.20x = 351,755,797,020.54
  5. Step 5: Solve for x
    x = 351,755,797,020.54/646,740.20
  6. Step 6: Final answer
    x = 543,890.42

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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.