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Finding the Fourth Proportional to 819,842.04, 1,221,612.74 and 730,408.32

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Solution

The fourth proportional to 819,842.04, 1,221,612.74 and 730,408.32 is: 1,088,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,842.04 : 1,221,612.74 = 730,408.32 : x
  2. Step 2: Convert to fraction form
    819,842.04/1,221,612.74 = 730,408.32/x
  3. Step 3: Cross multiply
    819,842.04x = 1,221,612.74 × 730,408.32
  4. Step 4: Simplify right side
    819,842.04x = 892,276,105,461.96
  5. Step 5: Solve for x
    x = 892,276,105,461.96/819,842.04
  6. Step 6: Final answer
    x = 1,088,351.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.