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Finding the Fourth Proportional to 551,925.32, 761,659.08 and 310,218.08

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Solution

The fourth proportional to 551,925.32, 761,659.08 and 310,218.08 is: 428,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,925.32 : 761,659.08 = 310,218.08 : x
  2. Step 2: Convert to fraction form
    551,925.32/761,659.08 = 310,218.08/x
  3. Step 3: Cross multiply
    551,925.32x = 761,659.08 × 310,218.08
  4. Step 4: Simplify right side
    551,925.32x = 236,280,417,412.17
  5. Step 5: Solve for x
    x = 236,280,417,412.17/551,925.32
  6. Step 6: Final answer
    x = 428,102.15

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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.