Home / 623,139.60-932,741.10-489,295.20

Finding the Fourth Proportional to 623,139.60, 932,741.10 and 489,295.20

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Solution

The fourth proportional to 623,139.60, 932,741.10 and 489,295.20 is: 732,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,139.60 : 932,741.10 = 489,295.20 : x
  2. Step 2: Convert to fraction form
    623,139.60/932,741.10 = 489,295.20/x
  3. Step 3: Cross multiply
    623,139.60x = 932,741.10 × 489,295.20
  4. Step 4: Simplify right side
    623,139.60x = 456,385,743,072.72
  5. Step 5: Solve for x
    x = 456,385,743,072.72/623,139.60
  6. Step 6: Final answer
    x = 732,397.27

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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.