Home / 722,492.20-1,084,775.10-407,564.20

Finding the Fourth Proportional to 722,492.20, 1,084,775.10 and 407,564.20

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Solution

The fourth proportional to 722,492.20, 1,084,775.10 and 407,564.20 is: 611,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,492.20 : 1,084,775.10 = 407,564.20 : x
  2. Step 2: Convert to fraction form
    722,492.20/1,084,775.10 = 407,564.20/x
  3. Step 3: Cross multiply
    722,492.20x = 1,084,775.10 × 407,564.20
  4. Step 4: Simplify right side
    722,492.20x = 442,115,495,811.42
  5. Step 5: Solve for x
    x = 442,115,495,811.42/722,492.20
  6. Step 6: Final answer
    x = 611,931.17

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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.