Home / 852,681.42-1,176,721.74-485,138.30

Finding the Fourth Proportional to 852,681.42, 1,176,721.74 and 485,138.30

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Solution

The fourth proportional to 852,681.42, 1,176,721.74 and 485,138.30 is: 669,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,681.42 : 1,176,721.74 = 485,138.30 : x
  2. Step 2: Convert to fraction form
    852,681.42/1,176,721.74 = 485,138.30/x
  3. Step 3: Cross multiply
    852,681.42x = 1,176,721.74 × 485,138.30
  4. Step 4: Simplify right side
    852,681.42x = 570,872,784,516.64
  5. Step 5: Solve for x
    x = 570,872,784,516.64/852,681.42
  6. Step 6: Final answer
    x = 669,503.02

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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.