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Finding the Fourth Proportional to 507,009.60, 760,514.40 and 307,555.20

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Solution

The fourth proportional to 507,009.60, 760,514.40 and 307,555.20 is: 461,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,009.60 : 760,514.40 = 307,555.20 : x
  2. Step 2: Convert to fraction form
    507,009.60/760,514.40 = 307,555.20/x
  3. Step 3: Cross multiply
    507,009.60x = 760,514.40 × 307,555.20
  4. Step 4: Simplify right side
    507,009.60x = 233,900,158,394.88
  5. Step 5: Solve for x
    x = 233,900,158,394.88/507,009.60
  6. Step 6: Final answer
    x = 461,332.80

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Similar ratio
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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.