Home / 739,123.20-1,020,211.20-470,937.60

Finding the Fourth Proportional to 739,123.20, 1,020,211.20 and 470,937.60

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Solution

The fourth proportional to 739,123.20, 1,020,211.20 and 470,937.60 is: 650,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,123.20 : 1,020,211.20 = 470,937.60 : x
  2. Step 2: Convert to fraction form
    739,123.20/1,020,211.20 = 470,937.60/x
  3. Step 3: Cross multiply
    739,123.20x = 1,020,211.20 × 470,937.60
  4. Step 4: Simplify right side
    739,123.20x = 480,455,814,021.12
  5. Step 5: Solve for x
    x = 480,455,814,021.12/739,123.20
  6. Step 6: Final answer
    x = 650,034.82

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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.