Home / 867,881.60-1,302,590.40-512,451.20

Finding the Fourth Proportional to 867,881.60, 1,302,590.40 and 512,451.20

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Solution

The fourth proportional to 867,881.60, 1,302,590.40 and 512,451.20 is: 769,130.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,881.60 : 1,302,590.40 = 512,451.20 : x
  2. Step 2: Convert to fraction form
    867,881.60/1,302,590.40 = 512,451.20/x
  3. Step 3: Cross multiply
    867,881.60x = 1,302,590.40 × 512,451.20
  4. Step 4: Simplify right side
    867,881.60x = 667,514,013,588.48
  5. Step 5: Solve for x
    x = 667,514,013,588.48/867,881.60
  6. Step 6: Final answer
    x = 769,130.27

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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.