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Finding the Fourth Proportional to 554,357.76, 765,013.32 and 299,709.12

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Solution

The fourth proportional to 554,357.76, 765,013.32 and 299,709.12 is: 413,598.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,357.76 : 765,013.32 = 299,709.12 : x
  2. Step 2: Convert to fraction form
    554,357.76/765,013.32 = 299,709.12/x
  3. Step 3: Cross multiply
    554,357.76x = 765,013.32 × 299,709.12
  4. Step 4: Simplify right side
    554,357.76x = 229,281,468,925.48
  5. Step 5: Solve for x
    x = 229,281,468,925.48/554,357.76
  6. Step 6: Final answer
    x = 413,598.38

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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.