Home / 807,398.60-1,114,211.10-439,873.92

Finding the Fourth Proportional to 807,398.60, 1,114,211.10 and 439,873.92

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Solution

The fourth proportional to 807,398.60, 1,114,211.10 and 439,873.92 is: 607,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,398.60 : 1,114,211.10 = 439,873.92 : x
  2. Step 2: Convert to fraction form
    807,398.60/1,114,211.10 = 439,873.92/x
  3. Step 3: Cross multiply
    807,398.60x = 1,114,211.10 × 439,873.92
  4. Step 4: Simplify right side
    807,398.60x = 490,112,404,264.51
  5. Step 5: Solve for x
    x = 490,112,404,264.51/807,398.60
  6. Step 6: Final answer
    x = 607,026.57

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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.