Home / 790,085.01-1,090,309.13-427,500.86

Finding the Fourth Proportional to 790,085.01, 1,090,309.13 and 427,500.86

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Solution

The fourth proportional to 790,085.01, 1,090,309.13 and 427,500.86 is: 589,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,085.01 : 1,090,309.13 = 427,500.86 : x
  2. Step 2: Convert to fraction form
    790,085.01/1,090,309.13 = 427,500.86/x
  3. Step 3: Cross multiply
    790,085.01x = 1,090,309.13 × 427,500.86
  4. Step 4: Simplify right side
    790,085.01x = 466,108,091,329.12
  5. Step 5: Solve for x
    x = 466,108,091,329.12/790,085.01
  6. Step 6: Final answer
    x = 589,946.76

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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.