Home / 756,423.20-1,133,079.60-520,032.80

Finding the Fourth Proportional to 756,423.20, 1,133,079.60 and 520,032.80

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Solution

The fourth proportional to 756,423.20, 1,133,079.60 and 520,032.80 is: 778,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,423.20 : 1,133,079.60 = 520,032.80 : x
  2. Step 2: Convert to fraction form
    756,423.20/1,133,079.60 = 520,032.80/x
  3. Step 3: Cross multiply
    756,423.20x = 1,133,079.60 × 520,032.80
  4. Step 4: Simplify right side
    756,423.20x = 589,238,557,010.88
  5. Step 5: Solve for x
    x = 589,238,557,010.88/756,423.20
  6. Step 6: Final answer
    x = 778,980.02

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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.