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Finding the Fourth Proportional to 610,305.10, 915,304.46 and 290,259.46

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Solution

The fourth proportional to 610,305.10, 915,304.46 and 290,259.46 is: 435,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,305.10 : 915,304.46 = 290,259.46 : x
  2. Step 2: Convert to fraction form
    610,305.10/915,304.46 = 290,259.46/x
  3. Step 3: Cross multiply
    610,305.10x = 915,304.46 × 290,259.46
  4. Step 4: Simplify right side
    610,305.10x = 265,675,778,295.19
  5. Step 5: Solve for x
    x = 265,675,778,295.19/610,305.10
  6. Step 6: Final answer
    x = 435,316.33

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Similar ratio
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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.