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Finding the Fourth Proportional to 867,957.72, 1,301,461.98 and 689,191.48

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Solution

The fourth proportional to 867,957.72, 1,301,461.98 and 689,191.48 is: 1,033,410.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,957.72 : 1,301,461.98 = 689,191.48 : x
  2. Step 2: Convert to fraction form
    867,957.72/1,301,461.98 = 689,191.48/x
  3. Step 3: Cross multiply
    867,957.72x = 1,301,461.98 × 689,191.48
  4. Step 4: Simplify right side
    867,957.72x = 896,956,508,159.93
  5. Step 5: Solve for x
    x = 896,956,508,159.93/867,957.72
  6. Step 6: Final answer
    x = 1,033,410.37

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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.