Home / 858,055.20-1,286,799.30-289,282.92

Finding the Fourth Proportional to 858,055.20, 1,286,799.30 and 289,282.92

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Solution

The fourth proportional to 858,055.20, 1,286,799.30 and 289,282.92 is: 433,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,055.20 : 1,286,799.30 = 289,282.92 : x
  2. Step 2: Convert to fraction form
    858,055.20/1,286,799.30 = 289,282.92/x
  3. Step 3: Cross multiply
    858,055.20x = 1,286,799.30 × 289,282.92
  4. Step 4: Simplify right side
    858,055.20x = 372,249,058,957.96
  5. Step 5: Solve for x
    x = 372,249,058,957.96/858,055.20
  6. Step 6: Final answer
    x = 433,828.80

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Double scale
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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.