Home / 1,690,316.55-2,332,645.70-915,947.69

Finding the Fourth Proportional to 1,690,316.55, 2,332,645.70 and 915,947.69

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Solution

The fourth proportional to 1,690,316.55, 2,332,645.70 and 915,947.69 is: 1,264,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,316.55 : 2,332,645.70 = 915,947.69 : x
  2. Step 2: Convert to fraction form
    1,690,316.55/2,332,645.70 = 915,947.69/x
  3. Step 3: Cross multiply
    1,690,316.55x = 2,332,645.70 × 915,947.69
  4. Step 4: Simplify right side
    1,690,316.55x = 2,136,581,424,260.47
  5. Step 5: Solve for x
    x = 2,136,581,424,260.47/1,690,316.55
  6. Step 6: Final answer
    x = 1,264,012.60

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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.