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Finding the Fourth Proportional to 707,068.96, 975,726.12 and 384,780.40

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Solution

The fourth proportional to 707,068.96, 975,726.12 and 384,780.40 is: 530,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,068.96 : 975,726.12 = 384,780.40 : x
  2. Step 2: Convert to fraction form
    707,068.96/975,726.12 = 384,780.40/x
  3. Step 3: Cross multiply
    707,068.96x = 975,726.12 × 384,780.40
  4. Step 4: Simplify right side
    707,068.96x = 375,440,286,744.05
  5. Step 5: Solve for x
    x = 375,440,286,744.05/707,068.96
  6. Step 6: Final answer
    x = 530,981.15

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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.