Home / 759,721.88-1,047,390.24-487,316.88

Finding the Fourth Proportional to 759,721.88, 1,047,390.24 and 487,316.88

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Solution

The fourth proportional to 759,721.88, 1,047,390.24 and 487,316.88 is: 671,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,721.88 : 1,047,390.24 = 487,316.88 : x
  2. Step 2: Convert to fraction form
    759,721.88/1,047,390.24 = 487,316.88/x
  3. Step 3: Cross multiply
    759,721.88x = 1,047,390.24 × 487,316.88
  4. Step 4: Simplify right side
    759,721.88x = 510,410,943,899.25
  5. Step 5: Solve for x
    x = 510,410,943,899.25/759,721.88
  6. Step 6: Final answer
    x = 671,839.21

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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.