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Finding the Fourth Proportional to 563,064.32, 777,041.28 and 321,342.08

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Solution

The fourth proportional to 563,064.32, 777,041.28 and 321,342.08 is: 443,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,064.32 : 777,041.28 = 321,342.08 : x
  2. Step 2: Convert to fraction form
    563,064.32/777,041.28 = 321,342.08/x
  3. Step 3: Cross multiply
    563,064.32x = 777,041.28 × 321,342.08
  4. Step 4: Simplify right side
    563,064.32x = 249,696,061,161.06
  5. Step 5: Solve for x
    x = 249,696,061,161.06/563,064.32
  6. Step 6: Final answer
    x = 443,459.21

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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.