Home / 476,306.15-657,280.04-258,509.88

Finding the Fourth Proportional to 476,306.15, 657,280.04 and 258,509.88

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Solution

The fourth proportional to 476,306.15, 657,280.04 and 258,509.88 is: 356,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,306.15 : 657,280.04 = 258,509.88 : x
  2. Step 2: Convert to fraction form
    476,306.15/657,280.04 = 258,509.88/x
  3. Step 3: Cross multiply
    476,306.15x = 657,280.04 × 258,509.88
  4. Step 4: Simplify right side
    476,306.15x = 169,913,382,974.25
  5. Step 5: Solve for x
    x = 169,913,382,974.25/476,306.15
  6. Step 6: Final answer
    x = 356,731.45

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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.