Home / 439,909.18-607,088.12-258,587.84

Finding the Fourth Proportional to 439,909.18, 607,088.12 and 258,587.84

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Solution

The fourth proportional to 439,909.18, 607,088.12 and 258,587.84 is: 356,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,909.18 : 607,088.12 = 258,587.84 : x
  2. Step 2: Convert to fraction form
    439,909.18/607,088.12 = 258,587.84/x
  3. Step 3: Cross multiply
    439,909.18x = 607,088.12 × 258,587.84
  4. Step 4: Simplify right side
    439,909.18x = 156,985,605,865.24
  5. Step 5: Solve for x
    x = 156,985,605,865.24/439,909.18
  6. Step 6: Final answer
    x = 356,859.13

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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.