Home / 710,485.20-1,065,727.80-486,536.40

Finding the Fourth Proportional to 710,485.20, 1,065,727.80 and 486,536.40

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Solution

The fourth proportional to 710,485.20, 1,065,727.80 and 486,536.40 is: 729,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,485.20 : 1,065,727.80 = 486,536.40 : x
  2. Step 2: Convert to fraction form
    710,485.20/1,065,727.80 = 486,536.40/x
  3. Step 3: Cross multiply
    710,485.20x = 1,065,727.80 × 486,536.40
  4. Step 4: Simplify right side
    710,485.20x = 518,515,367,191.92
  5. Step 5: Solve for x
    x = 518,515,367,191.92/710,485.20
  6. Step 6: Final answer
    x = 729,804.60

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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.