Home / 1,247,432.32-1,721,063.65-763,492.96

Finding the Fourth Proportional to 1,247,432.32, 1,721,063.65 and 763,492.96

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Solution

The fourth proportional to 1,247,432.32, 1,721,063.65 and 763,492.96 is: 1,053,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,432.32 : 1,721,063.65 = 763,492.96 : x
  2. Step 2: Convert to fraction form
    1,247,432.32/1,721,063.65 = 763,492.96/x
  3. Step 3: Cross multiply
    1,247,432.32x = 1,721,063.65 × 763,492.96
  4. Step 4: Simplify right side
    1,247,432.32x = 1,314,019,968,064.12
  5. Step 5: Solve for x
    x = 1,314,019,968,064.12/1,247,432.32
  6. Step 6: Final answer
    x = 1,053,379.77

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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.