Home / 875,869.20-1,313,803.80-314,960.40

Finding the Fourth Proportional to 875,869.20, 1,313,803.80 and 314,960.40

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Solution

The fourth proportional to 875,869.20, 1,313,803.80 and 314,960.40 is: 472,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,869.20 : 1,313,803.80 = 314,960.40 : x
  2. Step 2: Convert to fraction form
    875,869.20/1,313,803.80 = 314,960.40/x
  3. Step 3: Cross multiply
    875,869.20x = 1,313,803.80 × 314,960.40
  4. Step 4: Simplify right side
    875,869.20x = 413,796,170,369.52
  5. Step 5: Solve for x
    x = 413,796,170,369.52/875,869.20
  6. Step 6: Final answer
    x = 472,440.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.