Home / 1,402,336.32-1,935,377.90-813,765.42

Finding the Fourth Proportional to 1,402,336.32, 1,935,377.90 and 813,765.42

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Solution

The fourth proportional to 1,402,336.32, 1,935,377.90 and 813,765.42 is: 1,123,085.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,336.32 : 1,935,377.90 = 813,765.42 : x
  2. Step 2: Convert to fraction form
    1,402,336.32/1,935,377.90 = 813,765.42/x
  3. Step 3: Cross multiply
    1,402,336.32x = 1,935,377.90 × 813,765.42
  4. Step 4: Simplify right side
    1,402,336.32x = 1,574,943,609,652.22
  5. Step 5: Solve for x
    x = 1,574,943,609,652.22/1,402,336.32
  6. Step 6: Final answer
    x = 1,123,085.52

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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.