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Finding the Fourth Proportional to 500,521.60, 750,782.40 and 406,043.20

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Solution

The fourth proportional to 500,521.60, 750,782.40 and 406,043.20 is: 609,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,521.60 : 750,782.40 = 406,043.20 : x
  2. Step 2: Convert to fraction form
    500,521.60/750,782.40 = 406,043.20/x
  3. Step 3: Cross multiply
    500,521.60x = 750,782.40 × 406,043.20
  4. Step 4: Simplify right side
    500,521.60x = 304,850,088,199.68
  5. Step 5: Solve for x
    x = 304,850,088,199.68/500,521.60
  6. Step 6: Final answer
    x = 609,064.80

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1.5x scale

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.