Home / 1,289,429.28-1,778,957.64-737,742

Finding the Fourth Proportional to 1,289,429.28, 1,778,957.64 and 737,742

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Solution

The fourth proportional to 1,289,429.28, 1,778,957.64 and 737,742 is: 1,017,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,429.28 : 1,778,957.64 = 737,742 : x
  2. Step 2: Convert to fraction form
    1,289,429.28/1,778,957.64 = 737,742/x
  3. Step 3: Cross multiply
    1,289,429.28x = 1,778,957.64 × 737,742
  4. Step 4: Simplify right side
    1,289,429.28x = 1,312,411,767,248.88
  5. Step 5: Solve for x
    x = 1,312,411,767,248.88/1,289,429.28
  6. Step 6: Final answer
    x = 1,017,823.77

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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.