Home / 771,216.60-1,154,492.10-687,235.80

Finding the Fourth Proportional to 771,216.60, 1,154,492.10 and 687,235.80

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Solution

The fourth proportional to 771,216.60, 1,154,492.10 and 687,235.80 is: 1,028,774.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,216.60 : 1,154,492.10 = 687,235.80 : x
  2. Step 2: Convert to fraction form
    771,216.60/1,154,492.10 = 687,235.80/x
  3. Step 3: Cross multiply
    771,216.60x = 1,154,492.10 × 687,235.80
  4. Step 4: Simplify right side
    771,216.60x = 793,408,301,937.18
  5. Step 5: Solve for x
    x = 793,408,301,937.18/771,216.60
  6. Step 6: Final answer
    x = 1,028,774.93

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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.