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Finding the Fourth Proportional to 522,259.60, 783,438 and 185,267.20

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Solution

The fourth proportional to 522,259.60, 783,438 and 185,267.20 is: 277,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,259.60 : 783,438 = 185,267.20 : x
  2. Step 2: Convert to fraction form
    522,259.60/783,438 = 185,267.20/x
  3. Step 3: Cross multiply
    522,259.60x = 783,438 × 185,267.20
  4. Step 4: Simplify right side
    522,259.60x = 145,145,364,633.60
  5. Step 5: Solve for x
    x = 145,145,364,633.60/522,259.60
  6. Step 6: Final answer
    x = 277,918.04

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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.