Home / 634,815.28-875,981.28-380,159.92

Finding the Fourth Proportional to 634,815.28, 875,981.28 and 380,159.92

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Solution

The fourth proportional to 634,815.28, 875,981.28 and 380,159.92 is: 524,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,815.28 : 875,981.28 = 380,159.92 : x
  2. Step 2: Convert to fraction form
    634,815.28/875,981.28 = 380,159.92/x
  3. Step 3: Cross multiply
    634,815.28x = 875,981.28 × 380,159.92
  4. Step 4: Simplify right side
    634,815.28x = 333,012,973,326.30
  5. Step 5: Solve for x
    x = 333,012,973,326.30/634,815.28
  6. Step 6: Final answer
    x = 524,582.48

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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.