Home / 498,516.24-688,031.40-317,038.98

Finding the Fourth Proportional to 498,516.24, 688,031.40 and 317,038.98

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Solution

The fourth proportional to 498,516.24, 688,031.40 and 317,038.98 is: 437,564.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,516.24 : 688,031.40 = 317,038.98 : x
  2. Step 2: Convert to fraction form
    498,516.24/688,031.40 = 317,038.98/x
  3. Step 3: Cross multiply
    498,516.24x = 688,031.40 × 317,038.98
  4. Step 4: Simplify right side
    498,516.24x = 218,132,773,263.97
  5. Step 5: Solve for x
    x = 218,132,773,263.97/498,516.24
  6. Step 6: Final answer
    x = 437,564.03

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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.