Home / 830,042.13-1,145,125.50-507,191.73

Finding the Fourth Proportional to 830,042.13, 1,145,125.50 and 507,191.73

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Solution

The fourth proportional to 830,042.13, 1,145,125.50 and 507,191.73 is: 699,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,042.13 : 1,145,125.50 = 507,191.73 : x
  2. Step 2: Convert to fraction form
    830,042.13/1,145,125.50 = 507,191.73/x
  3. Step 3: Cross multiply
    830,042.13x = 1,145,125.50 × 507,191.73
  4. Step 4: Simplify right side
    830,042.13x = 580,798,180,068.88
  5. Step 5: Solve for x
    x = 580,798,180,068.88/830,042.13
  6. Step 6: Final answer
    x = 699,721.32

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Double scale
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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.