Home / 812,446.25-1,121,302.40-463,587.35

Finding the Fourth Proportional to 812,446.25, 1,121,302.40 and 463,587.35

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Solution

The fourth proportional to 812,446.25, 1,121,302.40 and 463,587.35 is: 639,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,446.25 : 1,121,302.40 = 463,587.35 : x
  2. Step 2: Convert to fraction form
    812,446.25/1,121,302.40 = 463,587.35/x
  3. Step 3: Cross multiply
    812,446.25x = 1,121,302.40 × 463,587.35
  4. Step 4: Simplify right side
    812,446.25x = 519,821,600,240.19
  5. Step 5: Solve for x
    x = 519,821,600,240.19/812,446.25
  6. Step 6: Final answer
    x = 639,822.76

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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.