Home / 815,316.71-1,223,191.95-282,836.87

Finding the Fourth Proportional to 815,316.71, 1,223,191.95 and 282,836.87

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Solution

The fourth proportional to 815,316.71, 1,223,191.95 and 282,836.87 is: 424,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,316.71 : 1,223,191.95 = 282,836.87 : x
  2. Step 2: Convert to fraction form
    815,316.71/1,223,191.95 = 282,836.87/x
  3. Step 3: Cross multiply
    815,316.71x = 1,223,191.95 × 282,836.87
  4. Step 4: Simplify right side
    815,316.71x = 345,963,782,547.20
  5. Step 5: Solve for x
    x = 345,963,782,547.20/815,316.71
  6. Step 6: Final answer
    x = 424,330.54

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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.