Home / 868,646.19-1,302,988.20-611,427.64

Finding the Fourth Proportional to 868,646.19, 1,302,988.20 and 611,427.64

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Solution

The fourth proportional to 868,646.19, 1,302,988.20 and 611,427.64 is: 917,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,646.19 : 1,302,988.20 = 611,427.64 : x
  2. Step 2: Convert to fraction form
    868,646.19/1,302,988.20 = 611,427.64/x
  3. Step 3: Cross multiply
    868,646.19x = 1,302,988.20 × 611,427.64
  4. Step 4: Simplify right side
    868,646.19x = 796,683,000,073.85
  5. Step 5: Solve for x
    x = 796,683,000,073.85/868,646.19
  6. Step 6: Final answer
    x = 917,154.77

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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.