Home / 916,856.80-1,375,285.20-523,640.80

Finding the Fourth Proportional to 916,856.80, 1,375,285.20 and 523,640.80

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Solution

The fourth proportional to 916,856.80, 1,375,285.20 and 523,640.80 is: 785,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,856.80 : 1,375,285.20 = 523,640.80 : x
  2. Step 2: Convert to fraction form
    916,856.80/1,375,285.20 = 523,640.80/x
  3. Step 3: Cross multiply
    916,856.80x = 1,375,285.20 × 523,640.80
  4. Step 4: Simplify right side
    916,856.80x = 720,155,442,356.16
  5. Step 5: Solve for x
    x = 720,155,442,356.16/916,856.80
  6. Step 6: Final answer
    x = 785,461.20

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1.5x scale

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.