Home / 917,000.40-1,375,561.35-243,072.30

Finding the Fourth Proportional to 917,000.40, 1,375,561.35 and 243,072.30

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Solution

The fourth proportional to 917,000.40, 1,375,561.35 and 243,072.30 is: 364,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,000.40 : 1,375,561.35 = 243,072.30 : x
  2. Step 2: Convert to fraction form
    917,000.40/1,375,561.35 = 243,072.30/x
  3. Step 3: Cross multiply
    917,000.40x = 1,375,561.35 × 243,072.30
  4. Step 4: Simplify right side
    917,000.40x = 334,360,861,135.61
  5. Step 5: Solve for x
    x = 334,360,861,135.61/917,000.40
  6. Step 6: Final answer
    x = 364,624.55

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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.