Home / 908,939.28-1,363,261.25-429,166.15

Finding the Fourth Proportional to 908,939.28, 1,363,261.25 and 429,166.15

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Solution

The fourth proportional to 908,939.28, 1,363,261.25 and 429,166.15 is: 643,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,939.28 : 1,363,261.25 = 429,166.15 : x
  2. Step 2: Convert to fraction form
    908,939.28/1,363,261.25 = 429,166.15/x
  3. Step 3: Cross multiply
    908,939.28x = 1,363,261.25 × 429,166.15
  4. Step 4: Simplify right side
    908,939.28x = 585,065,582,106.69
  5. Step 5: Solve for x
    x = 585,065,582,106.69/908,939.28
  6. Step 6: Final answer
    x = 643,679.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.