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Finding the Fourth Proportional to 653,148.52, 979,784.62 and 253,820.09

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Solution

The fourth proportional to 653,148.52, 979,784.62 and 253,820.09 is: 380,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,148.52 : 979,784.62 = 253,820.09 : x
  2. Step 2: Convert to fraction form
    653,148.52/979,784.62 = 253,820.09/x
  3. Step 3: Cross multiply
    653,148.52x = 979,784.62 × 253,820.09
  4. Step 4: Simplify right side
    653,148.52x = 248,689,018,569.74
  5. Step 5: Solve for x
    x = 248,689,018,569.74/653,148.52
  6. Step 6: Final answer
    x = 380,754.16

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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.