Home / 817,569.12-1,225,908.96-284,947.20

Finding the Fourth Proportional to 817,569.12, 1,225,908.96 and 284,947.20

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Solution

The fourth proportional to 817,569.12, 1,225,908.96 and 284,947.20 is: 427,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,569.12 : 1,225,908.96 = 284,947.20 : x
  2. Step 2: Convert to fraction form
    817,569.12/1,225,908.96 = 284,947.20/x
  3. Step 3: Cross multiply
    817,569.12x = 1,225,908.96 × 284,947.20
  4. Step 4: Simplify right side
    817,569.12x = 349,319,325,606.91
  5. Step 5: Solve for x
    x = 349,319,325,606.91/817,569.12
  6. Step 6: Final answer
    x = 427,265.80

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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.