Home / 476,486.80-657,586.29-315,061.90

Finding the Fourth Proportional to 476,486.80, 657,586.29 and 315,061.90

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Solution

The fourth proportional to 476,486.80, 657,586.29 and 315,061.90 is: 434,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,486.80 : 657,586.29 = 315,061.90 : x
  2. Step 2: Convert to fraction form
    476,486.80/657,586.29 = 315,061.90/x
  3. Step 3: Cross multiply
    476,486.80x = 657,586.29 × 315,061.90
  4. Step 4: Simplify right side
    476,486.80x = 207,180,385,941.35
  5. Step 5: Solve for x
    x = 207,180,385,941.35/476,486.80
  6. Step 6: Final answer
    x = 434,808.24

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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.