Home / 578,946.80-869,197.80-369,513.20

Finding the Fourth Proportional to 578,946.80, 869,197.80 and 369,513.20

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Solution

The fourth proportional to 578,946.80, 869,197.80 and 369,513.20 is: 554,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,946.80 : 869,197.80 = 369,513.20 : x
  2. Step 2: Convert to fraction form
    578,946.80/869,197.80 = 369,513.20/x
  3. Step 3: Cross multiply
    578,946.80x = 869,197.80 × 369,513.20
  4. Step 4: Simplify right side
    578,946.80x = 321,180,060,510.96
  5. Step 5: Solve for x
    x = 321,180,060,510.96/578,946.80
  6. Step 6: Final answer
    x = 554,766.10

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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.