Home / 485,501.42-670,070.88-292,104.61

Finding the Fourth Proportional to 485,501.42, 670,070.88 and 292,104.61

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Solution

The fourth proportional to 485,501.42, 670,070.88 and 292,104.61 is: 403,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,501.42 : 670,070.88 = 292,104.61 : x
  2. Step 2: Convert to fraction form
    485,501.42/670,070.88 = 292,104.61/x
  3. Step 3: Cross multiply
    485,501.42x = 670,070.88 × 292,104.61
  4. Step 4: Simplify right side
    485,501.42x = 195,730,788,263.88
  5. Step 5: Solve for x
    x = 195,730,788,263.88/485,501.42
  6. Step 6: Final answer
    x = 403,151.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.