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Finding the Fourth Proportional to 1,249,826.60, 1,870,001.40 and 829,922.60

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Solution

The fourth proportional to 1,249,826.60, 1,870,001.40 and 829,922.60 is: 1,241,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,826.60 : 1,870,001.40 = 829,922.60 : x
  2. Step 2: Convert to fraction form
    1,249,826.60/1,870,001.40 = 829,922.60/x
  3. Step 3: Cross multiply
    1,249,826.60x = 1,870,001.40 × 829,922.60
  4. Step 4: Simplify right side
    1,249,826.60x = 1,551,956,423,891.64
  5. Step 5: Solve for x
    x = 1,551,956,423,891.64/1,249,826.60
  6. Step 6: Final answer
    x = 1,241,737.39

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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.