Home / 1,287,966.70-1,931,950.05-910,053.10

Finding the Fourth Proportional to 1,287,966.70, 1,931,950.05 and 910,053.10

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Solution

The fourth proportional to 1,287,966.70, 1,931,950.05 and 910,053.10 is: 1,365,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,966.70 : 1,931,950.05 = 910,053.10 : x
  2. Step 2: Convert to fraction form
    1,287,966.70/1,931,950.05 = 910,053.10/x
  3. Step 3: Cross multiply
    1,287,966.70x = 1,931,950.05 × 910,053.10
  4. Step 4: Simplify right side
    1,287,966.70x = 1,758,177,132,047.66
  5. Step 5: Solve for x
    x = 1,758,177,132,047.66/1,287,966.70
  6. Step 6: Final answer
    x = 1,365,079.65

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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.