Home / 2,788,139.40-4,182,312.07-766,541.30

Finding the Fourth Proportional to 2,788,139.40, 4,182,312.07 and 766,541.30

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Solution

The fourth proportional to 2,788,139.40, 4,182,312.07 and 766,541.30 is: 1,149,840.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,139.40 : 4,182,312.07 = 766,541.30 : x
  2. Step 2: Convert to fraction form
    2,788,139.40/4,182,312.07 = 766,541.30/x
  3. Step 3: Cross multiply
    2,788,139.40x = 4,182,312.07 × 766,541.30
  4. Step 4: Simplify right side
    2,788,139.40x = 3,205,914,931,143.49
  5. Step 5: Solve for x
    x = 3,205,914,931,143.49/2,788,139.40
  6. Step 6: Final answer
    x = 1,149,840.26

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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.