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Finding the Fourth Proportional to 524,197.40, 786,879.30 and 288,001.40

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Solution

The fourth proportional to 524,197.40, 786,879.30 and 288,001.40 is: 432,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,197.40 : 786,879.30 = 288,001.40 : x
  2. Step 2: Convert to fraction form
    524,197.40/786,879.30 = 288,001.40/x
  3. Step 3: Cross multiply
    524,197.40x = 786,879.30 × 288,001.40
  4. Step 4: Simplify right side
    524,197.40x = 226,622,340,031.02
  5. Step 5: Solve for x
    x = 226,622,340,031.02/524,197.40
  6. Step 6: Final answer
    x = 432,322.52

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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.