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Finding the Fourth Proportional to 514,979.65, 710,745.46 and 285,587.96

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Solution

The fourth proportional to 514,979.65, 710,745.46 and 285,587.96 is: 394,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,979.65 : 710,745.46 = 285,587.96 : x
  2. Step 2: Convert to fraction form
    514,979.65/710,745.46 = 285,587.96/x
  3. Step 3: Cross multiply
    514,979.65x = 710,745.46 × 285,587.96
  4. Step 4: Simplify right side
    514,979.65x = 202,980,343,339.40
  5. Step 5: Solve for x
    x = 202,980,343,339.40/514,979.65
  6. Step 6: Final answer
    x = 394,152.16

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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.