Home / 1,288,360.89-1,931,941.35-478,181.07

Finding the Fourth Proportional to 1,288,360.89, 1,931,941.35 and 478,181.07

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Solution

The fourth proportional to 1,288,360.89, 1,931,941.35 and 478,181.07 is: 717,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,360.89 : 1,931,941.35 = 478,181.07 : x
  2. Step 2: Convert to fraction form
    1,288,360.89/1,931,941.35 = 478,181.07/x
  3. Step 3: Cross multiply
    1,288,360.89x = 1,931,941.35 × 478,181.07
  4. Step 4: Simplify right side
    1,288,360.89x = 923,817,781,920.25
  5. Step 5: Solve for x
    x = 923,817,781,920.25/1,288,360.89
  6. Step 6: Final answer
    x = 717,048.92

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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.