Home / 315,532.20-473,298.30-289,727.40

Finding the Fourth Proportional to 315,532.20, 473,298.30 and 289,727.40

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Solution

The fourth proportional to 315,532.20, 473,298.30 and 289,727.40 is: 434,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,532.20 : 473,298.30 = 289,727.40 : x
  2. Step 2: Convert to fraction form
    315,532.20/473,298.30 = 289,727.40/x
  3. Step 3: Cross multiply
    315,532.20x = 473,298.30 × 289,727.40
  4. Step 4: Simplify right side
    315,532.20x = 137,127,485,883.42
  5. Step 5: Solve for x
    x = 137,127,485,883.42/315,532.20
  6. Step 6: Final answer
    x = 434,591.10

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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.