Home / 879,421.43-1,319,359.57-514,990.80

Finding the Fourth Proportional to 879,421.43, 1,319,359.57 and 514,990.80

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Solution

The fourth proportional to 879,421.43, 1,319,359.57 and 514,990.80 is: 772,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,421.43 : 1,319,359.57 = 514,990.80 : x
  2. Step 2: Convert to fraction form
    879,421.43/1,319,359.57 = 514,990.80/x
  3. Step 3: Cross multiply
    879,421.43x = 1,319,359.57 × 514,990.80
  4. Step 4: Simplify right side
    879,421.43x = 679,458,047,058.10
  5. Step 5: Solve for x
    x = 679,458,047,058.10/879,421.43
  6. Step 6: Final answer
    x = 772,619.39

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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.