Home / 476,484.30-657,582.84-315,059.40

Finding the Fourth Proportional to 476,484.30, 657,582.84 and 315,059.40

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Solution

The fourth proportional to 476,484.30, 657,582.84 and 315,059.40 is: 434,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,484.30 : 657,582.84 = 315,059.40 : x
  2. Step 2: Convert to fraction form
    476,484.30/657,582.84 = 315,059.40/x
  3. Step 3: Cross multiply
    476,484.30x = 657,582.84 × 315,059.40
  4. Step 4: Simplify right side
    476,484.30x = 207,177,655,020.70
  5. Step 5: Solve for x
    x = 207,177,655,020.70/476,484.30
  6. Step 6: Final answer
    x = 434,804.79

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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.