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Finding the Fourth Proportional to 406,425.04, 561,140.40 and 253,695.76

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Solution

The fourth proportional to 406,425.04, 561,140.40 and 253,695.76 is: 350,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,425.04 : 561,140.40 = 253,695.76 : x
  2. Step 2: Convert to fraction form
    406,425.04/561,140.40 = 253,695.76/x
  3. Step 3: Cross multiply
    406,425.04x = 561,140.40 × 253,695.76
  4. Step 4: Simplify right side
    406,425.04x = 142,358,940,244.70
  5. Step 5: Solve for x
    x = 142,358,940,244.70/406,425.04
  6. Step 6: Final answer
    x = 350,271.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.