Home / 853,129.90-1,280,136.45-348,061.10

Finding the Fourth Proportional to 853,129.90, 1,280,136.45 and 348,061.10

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Solution

The fourth proportional to 853,129.90, 1,280,136.45 and 348,061.10 is: 522,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,129.90 : 1,280,136.45 = 348,061.10 : x
  2. Step 2: Convert to fraction form
    853,129.90/1,280,136.45 = 348,061.10/x
  3. Step 3: Cross multiply
    853,129.90x = 1,280,136.45 × 348,061.10
  4. Step 4: Simplify right side
    853,129.90x = 445,565,700,937.10
  5. Step 5: Solve for x
    x = 445,565,700,937.10/853,129.90
  6. Step 6: Final answer
    x = 522,271.81

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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.