Home / 761,257.58-1,050,458.90-421,662.38

Finding the Fourth Proportional to 761,257.58, 1,050,458.90 and 421,662.38

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Solution

The fourth proportional to 761,257.58, 1,050,458.90 and 421,662.38 is: 581,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,257.58 : 1,050,458.90 = 421,662.38 : x
  2. Step 2: Convert to fraction form
    761,257.58/1,050,458.90 = 421,662.38/x
  3. Step 3: Cross multiply
    761,257.58x = 1,050,458.90 × 421,662.38
  4. Step 4: Simplify right side
    761,257.58x = 442,938,999,866.18
  5. Step 5: Solve for x
    x = 442,938,999,866.18/761,257.58
  6. Step 6: Final answer
    x = 581,851.68

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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.