Home / 444,875.20-667,312.80-287,281.60

Finding the Fourth Proportional to 444,875.20, 667,312.80 and 287,281.60

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Solution

The fourth proportional to 444,875.20, 667,312.80 and 287,281.60 is: 430,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,875.20 : 667,312.80 = 287,281.60 : x
  2. Step 2: Convert to fraction form
    444,875.20/667,312.80 = 287,281.60/x
  3. Step 3: Cross multiply
    444,875.20x = 667,312.80 × 287,281.60
  4. Step 4: Simplify right side
    444,875.20x = 191,706,688,884.48
  5. Step 5: Solve for x
    x = 191,706,688,884.48/444,875.20
  6. Step 6: Final answer
    x = 430,922.40

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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.