Home / 880,762.40-1,215,406.80-478,353.44

Finding the Fourth Proportional to 880,762.40, 1,215,406.80 and 478,353.44

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Solution

The fourth proportional to 880,762.40, 1,215,406.80 and 478,353.44 is: 660,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,762.40 : 1,215,406.80 = 478,353.44 : x
  2. Step 2: Convert to fraction form
    880,762.40/1,215,406.80 = 478,353.44/x
  3. Step 3: Cross multiply
    880,762.40x = 1,215,406.80 × 478,353.44
  4. Step 4: Simplify right side
    880,762.40x = 581,394,023,779.39
  5. Step 5: Solve for x
    x = 581,394,023,779.39/880,762.40
  6. Step 6: Final answer
    x = 660,103.14

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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.