Home / 1,289,645.85-1,931,502.75-748,562.07

Finding the Fourth Proportional to 1,289,645.85, 1,931,502.75 and 748,562.07

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Solution

The fourth proportional to 1,289,645.85, 1,931,502.75 and 748,562.07 is: 1,121,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,645.85 : 1,931,502.75 = 748,562.07 : x
  2. Step 2: Convert to fraction form
    1,289,645.85/1,931,502.75 = 748,562.07/x
  3. Step 3: Cross multiply
    1,289,645.85x = 1,931,502.75 × 748,562.07
  4. Step 4: Simplify right side
    1,289,645.85x = 1,445,849,696,750.69
  5. Step 5: Solve for x
    x = 1,445,849,696,750.69/1,289,645.85
  6. Step 6: Final answer
    x = 1,121,121.51

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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.