Home / 1,780,947.64-2,671,705.18-643,594.71

Finding the Fourth Proportional to 1,780,947.64, 2,671,705.18 and 643,594.71

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Solution

The fourth proportional to 1,780,947.64, 2,671,705.18 and 643,594.71 is: 965,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,947.64 : 2,671,705.18 = 643,594.71 : x
  2. Step 2: Convert to fraction form
    1,780,947.64/2,671,705.18 = 643,594.71/x
  3. Step 3: Cross multiply
    1,780,947.64x = 2,671,705.18 × 643,594.71
  4. Step 4: Simplify right side
    1,780,947.64x = 1,719,495,331,350.99
  5. Step 5: Solve for x
    x = 1,719,495,331,350.99/1,780,947.64
  6. Step 6: Final answer
    x = 965,494.60

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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.