Home / 710,492.20-1,065,738.30-486,543.40

Finding the Fourth Proportional to 710,492.20, 1,065,738.30 and 486,543.40

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Solution

The fourth proportional to 710,492.20, 1,065,738.30 and 486,543.40 is: 729,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,492.20 : 1,065,738.30 = 486,543.40 : x
  2. Step 2: Convert to fraction form
    710,492.20/1,065,738.30 = 486,543.40/x
  3. Step 3: Cross multiply
    710,492.20x = 1,065,738.30 × 486,543.40
  4. Step 4: Simplify right side
    710,492.20x = 518,527,935,992.22
  5. Step 5: Solve for x
    x = 518,527,935,992.22/710,492.20
  6. Step 6: Final answer
    x = 729,815.10

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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.