Home / 659,928.55-910,701.98-358,122.55

Finding the Fourth Proportional to 659,928.55, 910,701.98 and 358,122.55

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Solution

The fourth proportional to 659,928.55, 910,701.98 and 358,122.55 is: 494,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,928.55 : 910,701.98 = 358,122.55 : x
  2. Step 2: Convert to fraction form
    659,928.55/910,701.98 = 358,122.55/x
  3. Step 3: Cross multiply
    659,928.55x = 910,701.98 × 358,122.55
  4. Step 4: Simplify right side
    659,928.55x = 326,142,913,986.20
  5. Step 5: Solve for x
    x = 326,142,913,986.20/659,928.55
  6. Step 6: Final answer
    x = 494,209.43

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1.5x scale

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.