Home / 761,142.57-1,050,376.65-455,218.90

Finding the Fourth Proportional to 761,142.57, 1,050,376.65 and 455,218.90

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Solution

The fourth proportional to 761,142.57, 1,050,376.65 and 455,218.90 is: 628,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,142.57 : 1,050,376.65 = 455,218.90 : x
  2. Step 2: Convert to fraction form
    761,142.57/1,050,376.65 = 455,218.90/x
  3. Step 3: Cross multiply
    761,142.57x = 1,050,376.65 × 455,218.90
  4. Step 4: Simplify right side
    761,142.57x = 478,151,302,804.59
  5. Step 5: Solve for x
    x = 478,151,302,804.59/761,142.57
  6. Step 6: Final answer
    x = 628,202.03

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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.