Home / 986,457.30-1,478,082.15-891,978.90

Finding the Fourth Proportional to 986,457.30, 1,478,082.15 and 891,978.90

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Solution

The fourth proportional to 986,457.30, 1,478,082.15 and 891,978.90 is: 1,336,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,457.30 : 1,478,082.15 = 891,978.90 : x
  2. Step 2: Convert to fraction form
    986,457.30/1,478,082.15 = 891,978.90/x
  3. Step 3: Cross multiply
    986,457.30x = 1,478,082.15 × 891,978.90
  4. Step 4: Simplify right side
    986,457.30x = 1,318,418,090,266.64
  5. Step 5: Solve for x
    x = 1,318,418,090,266.64/986,457.30
  6. Step 6: Final answer
    x = 1,336,518.15

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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.