Home / 988,397.10-1,364,011.65-558,678.88

Finding the Fourth Proportional to 988,397.10, 1,364,011.65 and 558,678.88

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Solution

The fourth proportional to 988,397.10, 1,364,011.65 and 558,678.88 is: 770,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,397.10 : 1,364,011.65 = 558,678.88 : x
  2. Step 2: Convert to fraction form
    988,397.10/1,364,011.65 = 558,678.88/x
  3. Step 3: Cross multiply
    988,397.10x = 1,364,011.65 × 558,678.88
  4. Step 4: Simplify right side
    988,397.10x = 762,044,500,928.95
  5. Step 5: Solve for x
    x = 762,044,500,928.95/988,397.10
  6. Step 6: Final answer
    x = 770,990.22

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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.