Home / 1,287,565.84-1,931,348.93-488,847.81

Finding the Fourth Proportional to 1,287,565.84, 1,931,348.93 and 488,847.81

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Solution

The fourth proportional to 1,287,565.84, 1,931,348.93 and 488,847.81 is: 733,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,565.84 : 1,931,348.93 = 488,847.81 : x
  2. Step 2: Convert to fraction form
    1,287,565.84/1,931,348.93 = 488,847.81/x
  3. Step 3: Cross multiply
    1,287,565.84x = 1,931,348.93 × 488,847.81
  4. Step 4: Simplify right side
    1,287,565.84x = 944,135,689,398.24
  5. Step 5: Solve for x
    x = 944,135,689,398.24/1,287,565.84
  6. Step 6: Final answer
    x = 733,271.78

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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.