Home / 1,262,336.80-1,742,038.65-689,393.83

Finding the Fourth Proportional to 1,262,336.80, 1,742,038.65 and 689,393.83

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Solution

The fourth proportional to 1,262,336.80, 1,742,038.65 and 689,393.83 is: 951,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,336.80 : 1,742,038.65 = 689,393.83 : x
  2. Step 2: Convert to fraction form
    1,262,336.80/1,742,038.65 = 689,393.83/x
  3. Step 3: Cross multiply
    1,262,336.80x = 1,742,038.65 × 689,393.83
  4. Step 4: Simplify right side
    1,262,336.80x = 1,200,950,696,931.53
  5. Step 5: Solve for x
    x = 1,200,950,696,931.53/1,262,336.80
  6. Step 6: Final answer
    x = 951,371.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.