Home / 1,306,257.20-1,960,132-507,434.80

Finding the Fourth Proportional to 1,306,257.20, 1,960,132 and 507,434.80

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Solution

The fourth proportional to 1,306,257.20, 1,960,132 and 507,434.80 is: 761,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,257.20 : 1,960,132 = 507,434.80 : x
  2. Step 2: Convert to fraction form
    1,306,257.20/1,960,132 = 507,434.80/x
  3. Step 3: Cross multiply
    1,306,257.20x = 1,960,132 × 507,434.80
  4. Step 4: Simplify right side
    1,306,257.20x = 994,639,189,393.60
  5. Step 5: Solve for x
    x = 994,639,189,393.60/1,306,257.20
  6. Step 6: Final answer
    x = 761,442.07

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Double scale
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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.