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Finding the Fourth Proportional to 557,367.92, 768,643.80 and 429,841.52

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Solution

The fourth proportional to 557,367.92, 768,643.80 and 429,841.52 is: 592,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,367.92 : 768,643.80 = 429,841.52 : x
  2. Step 2: Convert to fraction form
    557,367.92/768,643.80 = 429,841.52/x
  3. Step 3: Cross multiply
    557,367.92x = 768,643.80 × 429,841.52
  4. Step 4: Simplify right side
    557,367.92x = 330,395,019,330.58
  5. Step 5: Solve for x
    x = 330,395,019,330.58/557,367.92
  6. Step 6: Final answer
    x = 592,777.24

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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.