Home / 1,221,337.98-1,685,648.16-677,648.70

Finding the Fourth Proportional to 1,221,337.98, 1,685,648.16 and 677,648.70

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Solution

The fourth proportional to 1,221,337.98, 1,685,648.16 and 677,648.70 is: 935,267.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,337.98 : 1,685,648.16 = 677,648.70 : x
  2. Step 2: Convert to fraction form
    1,221,337.98/1,685,648.16 = 677,648.70/x
  3. Step 3: Cross multiply
    1,221,337.98x = 1,685,648.16 × 677,648.70
  4. Step 4: Simplify right side
    1,221,337.98x = 1,142,277,284,281.39
  5. Step 5: Solve for x
    x = 1,142,277,284,281.39/1,221,337.98
  6. Step 6: Final answer
    x = 935,267.14

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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.