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Finding the Fourth Proportional to 524,266.20, 786,990.60 and 347,119.20

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Solution

The fourth proportional to 524,266.20, 786,990.60 and 347,119.20 is: 521,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,266.20 : 786,990.60 = 347,119.20 : x
  2. Step 2: Convert to fraction form
    524,266.20/786,990.60 = 347,119.20/x
  3. Step 3: Cross multiply
    524,266.20x = 786,990.60 × 347,119.20
  4. Step 4: Simplify right side
    524,266.20x = 273,179,547,479.52
  5. Step 5: Solve for x
    x = 273,179,547,479.52/524,266.20
  6. Step 6: Final answer
    x = 521,070.30

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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.