Home / 558,422.15-837,633.29-390,270.87

Finding the Fourth Proportional to 558,422.15, 837,633.29 and 390,270.87

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Solution

The fourth proportional to 558,422.15, 837,633.29 and 390,270.87 is: 585,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,422.15 : 837,633.29 = 390,270.87 : x
  2. Step 2: Convert to fraction form
    558,422.15/837,633.29 = 390,270.87/x
  3. Step 3: Cross multiply
    558,422.15x = 837,633.29 × 390,270.87
  4. Step 4: Simplify right side
    558,422.15x = 326,903,870,877.91
  5. Step 5: Solve for x
    x = 326,903,870,877.91/558,422.15
  6. Step 6: Final answer
    x = 585,406.35

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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.