Home / 1,124,347.84-1,683,819.30-643,116.76

Finding the Fourth Proportional to 1,124,347.84, 1,683,819.30 and 643,116.76

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Solution

The fourth proportional to 1,124,347.84, 1,683,819.30 and 643,116.76 is: 963,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,347.84 : 1,683,819.30 = 643,116.76 : x
  2. Step 2: Convert to fraction form
    1,124,347.84/1,683,819.30 = 643,116.76/x
  3. Step 3: Cross multiply
    1,124,347.84x = 1,683,819.30 × 643,116.76
  4. Step 4: Simplify right side
    1,124,347.84x = 1,082,892,412,641.47
  5. Step 5: Solve for x
    x = 1,082,892,412,641.47/1,124,347.84
  6. Step 6: Final answer
    x = 963,129.36

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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.