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Finding the Fourth Proportional to 551,374.40, 827,061.60 and 507,828.80

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Solution

The fourth proportional to 551,374.40, 827,061.60 and 507,828.80 is: 761,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,374.40 : 827,061.60 = 507,828.80 : x
  2. Step 2: Convert to fraction form
    551,374.40/827,061.60 = 507,828.80/x
  3. Step 3: Cross multiply
    551,374.40x = 827,061.60 × 507,828.80
  4. Step 4: Simplify right side
    551,374.40x = 420,005,699,854.08
  5. Step 5: Solve for x
    x = 420,005,699,854.08/551,374.40
  6. Step 6: Final answer
    x = 761,743.20

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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.