Home / 1,378,438.32-1,902,246-766,577.76

Finding the Fourth Proportional to 1,378,438.32, 1,902,246 and 766,577.76

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Solution

The fourth proportional to 1,378,438.32, 1,902,246 and 766,577.76 is: 1,057,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,438.32 : 1,902,246 = 766,577.76 : x
  2. Step 2: Convert to fraction form
    1,378,438.32/1,902,246 = 766,577.76/x
  3. Step 3: Cross multiply
    1,378,438.32x = 1,902,246 × 766,577.76
  4. Step 4: Simplify right side
    1,378,438.32x = 1,458,219,477,648.96
  5. Step 5: Solve for x
    x = 1,458,219,477,648.96/1,378,438.32
  6. Step 6: Final answer
    x = 1,057,877.93

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1.5x scale

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.