Home / 712,687.74-1,069,228.44-634,349.40

Finding the Fourth Proportional to 712,687.74, 1,069,228.44 and 634,349.40

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Solution

The fourth proportional to 712,687.74, 1,069,228.44 and 634,349.40 is: 951,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,687.74 : 1,069,228.44 = 634,349.40 : x
  2. Step 2: Convert to fraction form
    712,687.74/1,069,228.44 = 634,349.40/x
  3. Step 3: Cross multiply
    712,687.74x = 1,069,228.44 × 634,349.40
  4. Step 4: Simplify right side
    712,687.74x = 678,264,419,376.94
  5. Step 5: Solve for x
    x = 678,264,419,376.94/712,687.74
  6. Step 6: Final answer
    x = 951,699.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.