Home / 824,960.28-1,138,476.48-462,390.84

Finding the Fourth Proportional to 824,960.28, 1,138,476.48 and 462,390.84

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Solution

The fourth proportional to 824,960.28, 1,138,476.48 and 462,390.84 is: 638,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,960.28 : 1,138,476.48 = 462,390.84 : x
  2. Step 2: Convert to fraction form
    824,960.28/1,138,476.48 = 462,390.84/x
  3. Step 3: Cross multiply
    824,960.28x = 1,138,476.48 × 462,390.84
  4. Step 4: Simplify right side
    824,960.28x = 526,421,095,907.44
  5. Step 5: Solve for x
    x = 526,421,095,907.44/824,960.28
  6. Step 6: Final answer
    x = 638,116.90

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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.