Home / 915,547.38-1,373,395.79-459,904.25

Finding the Fourth Proportional to 915,547.38, 1,373,395.79 and 459,904.25

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Solution

The fourth proportional to 915,547.38, 1,373,395.79 and 459,904.25 is: 689,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,547.38 : 1,373,395.79 = 459,904.25 : x
  2. Step 2: Convert to fraction form
    915,547.38/1,373,395.79 = 459,904.25/x
  3. Step 3: Cross multiply
    915,547.38x = 1,373,395.79 × 459,904.25
  4. Step 4: Simplify right side
    915,547.38x = 631,630,560,753.11
  5. Step 5: Solve for x
    x = 631,630,560,753.11/915,547.38
  6. Step 6: Final answer
    x = 689,893.91

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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.