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Finding the Fourth Proportional to 640,959.48, 884,488.11 and 350,513.27

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Solution

The fourth proportional to 640,959.48, 884,488.11 and 350,513.27 is: 483,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,959.48 : 884,488.11 = 350,513.27 : x
  2. Step 2: Convert to fraction form
    640,959.48/884,488.11 = 350,513.27/x
  3. Step 3: Cross multiply
    640,959.48x = 884,488.11 × 350,513.27
  4. Step 4: Simplify right side
    640,959.48x = 310,024,822,267.43
  5. Step 5: Solve for x
    x = 310,024,822,267.43/640,959.48
  6. Step 6: Final answer
    x = 483,688.64

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1.5x scale

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.