Home / 1,971,312.40-2,956,385.40-772,544.80

Finding the Fourth Proportional to 1,971,312.40, 2,956,385.40 and 772,544.80

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Solution

The fourth proportional to 1,971,312.40, 2,956,385.40 and 772,544.80 is: 1,158,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,312.40 : 2,956,385.40 = 772,544.80 : x
  2. Step 2: Convert to fraction form
    1,971,312.40/2,956,385.40 = 772,544.80/x
  3. Step 3: Cross multiply
    1,971,312.40x = 2,956,385.40 × 772,544.80
  4. Step 4: Simplify right side
    1,971,312.40x = 2,283,940,167,565.92
  5. Step 5: Solve for x
    x = 2,283,940,167,565.92/1,971,312.40
  6. Step 6: Final answer
    x = 1,158,588.65

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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.