Home / 988,389.10-1,364,000.61-558,670.88

Finding the Fourth Proportional to 988,389.10, 1,364,000.61 and 558,670.88

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Solution

The fourth proportional to 988,389.10, 1,364,000.61 and 558,670.88 is: 770,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,389.10 : 1,364,000.61 = 558,670.88 : x
  2. Step 2: Convert to fraction form
    988,389.10/1,364,000.61 = 558,670.88/x
  3. Step 3: Cross multiply
    988,389.10x = 1,364,000.61 × 558,670.88
  4. Step 4: Simplify right side
    988,389.10x = 762,027,421,109.24
  5. Step 5: Solve for x
    x = 762,027,421,109.24/988,389.10
  6. Step 6: Final answer
    x = 770,979.18

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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.