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Finding the Fourth Proportional to 371,792.28, 556,228.56 and 286,911.18

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Solution

The fourth proportional to 371,792.28, 556,228.56 and 286,911.18 is: 429,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,792.28 : 556,228.56 = 286,911.18 : x
  2. Step 2: Convert to fraction form
    371,792.28/556,228.56 = 286,911.18/x
  3. Step 3: Cross multiply
    371,792.28x = 556,228.56 × 286,911.18
  4. Step 4: Simplify right side
    371,792.28x = 159,588,192,499.30
  5. Step 5: Solve for x
    x = 159,588,192,499.30/371,792.28
  6. Step 6: Final answer
    x = 429,240.20

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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.