Home / 908,113.20-1,362,461.40-402,478.80

Finding the Fourth Proportional to 908,113.20, 1,362,461.40 and 402,478.80

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Solution

The fourth proportional to 908,113.20, 1,362,461.40 and 402,478.80 is: 603,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,113.20 : 1,362,461.40 = 402,478.80 : x
  2. Step 2: Convert to fraction form
    908,113.20/1,362,461.40 = 402,478.80/x
  3. Step 3: Cross multiply
    908,113.20x = 1,362,461.40 × 402,478.80
  4. Step 4: Simplify right side
    908,113.20x = 548,361,829,318.32
  5. Step 5: Solve for x
    x = 548,361,829,318.32/908,113.20
  6. Step 6: Final answer
    x = 603,847.44

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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.