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Finding the Fourth Proportional to 610,501.20, 915,751.80 and 492,403.20

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Solution

The fourth proportional to 610,501.20, 915,751.80 and 492,403.20 is: 738,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,501.20 : 915,751.80 = 492,403.20 : x
  2. Step 2: Convert to fraction form
    610,501.20/915,751.80 = 492,403.20/x
  3. Step 3: Cross multiply
    610,501.20x = 915,751.80 × 492,403.20
  4. Step 4: Simplify right side
    610,501.20x = 450,919,116,725.76
  5. Step 5: Solve for x
    x = 450,919,116,725.76/610,501.20
  6. Step 6: Final answer
    x = 738,604.80

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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.