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Finding the Fourth Proportional to 556,570.08, 767,821.92 and 375,215.76

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Solution

The fourth proportional to 556,570.08, 767,821.92 and 375,215.76 is: 517,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,570.08 : 767,821.92 = 375,215.76 : x
  2. Step 2: Convert to fraction form
    556,570.08/767,821.92 = 375,215.76/x
  3. Step 3: Cross multiply
    556,570.08x = 767,821.92 × 375,215.76
  4. Step 4: Simplify right side
    556,570.08x = 288,098,885,257.46
  5. Step 5: Solve for x
    x = 288,098,885,257.46/556,570.08
  6. Step 6: Final answer
    x = 517,632.72

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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.