Home / 771,216.10-1,154,491.35-687,235.30

Finding the Fourth Proportional to 771,216.10, 1,154,491.35 and 687,235.30

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Solution

The fourth proportional to 771,216.10, 1,154,491.35 and 687,235.30 is: 1,028,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,216.10 : 1,154,491.35 = 687,235.30 : x
  2. Step 2: Convert to fraction form
    771,216.10/1,154,491.35 = 687,235.30/x
  3. Step 3: Cross multiply
    771,216.10x = 1,154,491.35 × 687,235.30
  4. Step 4: Simplify right side
    771,216.10x = 793,407,209,264.66
  5. Step 5: Solve for x
    x = 793,407,209,264.66/771,216.10
  6. Step 6: Final answer
    x = 1,028,774.18

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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.