Home / 817,948.48-1,227,117.28-256,983.20

Finding the Fourth Proportional to 817,948.48, 1,227,117.28 and 256,983.20

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Solution

The fourth proportional to 817,948.48, 1,227,117.28 and 256,983.20 is: 385,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,948.48 : 1,227,117.28 = 256,983.20 : x
  2. Step 2: Convert to fraction form
    817,948.48/1,227,117.28 = 256,983.20/x
  3. Step 3: Cross multiply
    817,948.48x = 1,227,117.28 × 256,983.20
  4. Step 4: Simplify right side
    817,948.48x = 315,348,525,389.70
  5. Step 5: Solve for x
    x = 315,348,525,389.70/817,948.48
  6. Step 6: Final answer
    x = 385,535.93

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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.