Home / 1,245,670.32-1,719,024.80-672,710.40

Finding the Fourth Proportional to 1,245,670.32, 1,719,024.80 and 672,710.40

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Solution

The fourth proportional to 1,245,670.32, 1,719,024.80 and 672,710.40 is: 928,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,670.32 : 1,719,024.80 = 672,710.40 : x
  2. Step 2: Convert to fraction form
    1,245,670.32/1,719,024.80 = 672,710.40/x
  3. Step 3: Cross multiply
    1,245,670.32x = 1,719,024.80 × 672,710.40
  4. Step 4: Simplify right side
    1,245,670.32x = 1,156,405,860,817.92
  5. Step 5: Solve for x
    x = 1,156,405,860,817.92/1,245,670.32
  6. Step 6: Final answer
    x = 928,340.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.