Home / 930,785.31-1,284,483.02-528,377.31

Finding the Fourth Proportional to 930,785.31, 1,284,483.02 and 528,377.31

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Solution

The fourth proportional to 930,785.31, 1,284,483.02 and 528,377.31 is: 729,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,785.31 : 1,284,483.02 = 528,377.31 : x
  2. Step 2: Convert to fraction form
    930,785.31/1,284,483.02 = 528,377.31/x
  3. Step 3: Cross multiply
    930,785.31x = 1,284,483.02 × 528,377.31
  4. Step 4: Simplify right side
    930,785.31x = 678,691,680,206.39
  5. Step 5: Solve for x
    x = 678,691,680,206.39/930,785.31
  6. Step 6: Final answer
    x = 729,160.28

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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.