Home / 761,107.38-1,050,362.81-421,575.63

Finding the Fourth Proportional to 761,107.38, 1,050,362.81 and 421,575.63

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Solution

The fourth proportional to 761,107.38, 1,050,362.81 and 421,575.63 is: 581,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,107.38 : 1,050,362.81 = 421,575.63 : x
  2. Step 2: Convert to fraction form
    761,107.38/1,050,362.81 = 421,575.63/x
  3. Step 3: Cross multiply
    761,107.38x = 1,050,362.81 × 421,575.63
  4. Step 4: Simplify right side
    761,107.38x = 442,807,363,354.32
  5. Step 5: Solve for x
    x = 442,807,363,354.32/761,107.38
  6. Step 6: Final answer
    x = 581,793.55

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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.