Home / 579,708.20-869,130.30-299,426.60

Finding the Fourth Proportional to 579,708.20, 869,130.30 and 299,426.60

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Solution

The fourth proportional to 579,708.20, 869,130.30 and 299,426.60 is: 448,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,708.20 : 869,130.30 = 299,426.60 : x
  2. Step 2: Convert to fraction form
    579,708.20/869,130.30 = 299,426.60/x
  3. Step 3: Cross multiply
    579,708.20x = 869,130.30 × 299,426.60
  4. Step 4: Simplify right side
    579,708.20x = 260,240,730,685.98
  5. Step 5: Solve for x
    x = 260,240,730,685.98/579,708.20
  6. Step 6: Final answer
    x = 448,916.77

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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.