Home / 708,287.24-977,407.88-385,990.46

Finding the Fourth Proportional to 708,287.24, 977,407.88 and 385,990.46

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Solution

The fourth proportional to 708,287.24, 977,407.88 and 385,990.46 is: 532,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,287.24 : 977,407.88 = 385,990.46 : x
  2. Step 2: Convert to fraction form
    708,287.24/977,407.88 = 385,990.46/x
  3. Step 3: Cross multiply
    708,287.24x = 977,407.88 × 385,990.46
  4. Step 4: Simplify right side
    708,287.24x = 377,270,117,208.83
  5. Step 5: Solve for x
    x = 377,270,117,208.83/708,287.24
  6. Step 6: Final answer
    x = 532,651.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.