Home / 872,823.91-1,204,478.12-505,316.55

Finding the Fourth Proportional to 872,823.91, 1,204,478.12 and 505,316.55

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Solution

The fourth proportional to 872,823.91, 1,204,478.12 and 505,316.55 is: 697,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,823.91 : 1,204,478.12 = 505,316.55 : x
  2. Step 2: Convert to fraction form
    872,823.91/1,204,478.12 = 505,316.55/x
  3. Step 3: Cross multiply
    872,823.91x = 1,204,478.12 × 505,316.55
  4. Step 4: Simplify right side
    872,823.91x = 608,642,719,599.91
  5. Step 5: Solve for x
    x = 608,642,719,599.91/872,823.91
  6. Step 6: Final answer
    x = 697,325.90

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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.