Home / 1,244,312.70-1,867,851.45-771,531.90

Finding the Fourth Proportional to 1,244,312.70, 1,867,851.45 and 771,531.90

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Solution

The fourth proportional to 1,244,312.70, 1,867,851.45 and 771,531.90 is: 1,158,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,312.70 : 1,867,851.45 = 771,531.90 : x
  2. Step 2: Convert to fraction form
    1,244,312.70/1,867,851.45 = 771,531.90/x
  3. Step 3: Cross multiply
    1,244,312.70x = 1,867,851.45 × 771,531.90
  4. Step 4: Simplify right side
    1,244,312.70x = 1,441,106,978,136.26
  5. Step 5: Solve for x
    x = 1,441,106,978,136.26/1,244,312.70
  6. Step 6: Final answer
    x = 1,158,155.00

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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.