Home / 1,220,828.48-1,684,713.12-676,966.40

Finding the Fourth Proportional to 1,220,828.48, 1,684,713.12 and 676,966.40

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Solution

The fourth proportional to 1,220,828.48, 1,684,713.12 and 676,966.40 is: 934,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,828.48 : 1,684,713.12 = 676,966.40 : x
  2. Step 2: Convert to fraction form
    1,220,828.48/1,684,713.12 = 676,966.40/x
  3. Step 3: Cross multiply
    1,220,828.48x = 1,684,713.12 × 676,966.40
  4. Step 4: Simplify right side
    1,220,828.48x = 1,140,494,175,879.17
  5. Step 5: Solve for x
    x = 1,140,494,175,879.17/1,220,828.48
  6. Step 6: Final answer
    x = 934,196.90

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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.