Home / 558,425.73-837,638.64-390,274.41

Finding the Fourth Proportional to 558,425.73, 837,638.64 and 390,274.41

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Solution

The fourth proportional to 558,425.73, 837,638.64 and 390,274.41 is: 585,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,425.73 : 837,638.64 = 390,274.41 : x
  2. Step 2: Convert to fraction form
    558,425.73/837,638.64 = 390,274.41/x
  3. Step 3: Cross multiply
    558,425.73x = 837,638.64 × 390,274.41
  4. Step 4: Simplify right side
    558,425.73x = 326,908,926,019.20
  5. Step 5: Solve for x
    x = 326,908,926,019.20/558,425.73
  6. Step 6: Final answer
    x = 585,411.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.