Home / 1,133,442.47-1,564,031.70-643,255.89

Finding the Fourth Proportional to 1,133,442.47, 1,564,031.70 and 643,255.89

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Solution

The fourth proportional to 1,133,442.47, 1,564,031.70 and 643,255.89 is: 887,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,442.47 : 1,564,031.70 = 643,255.89 : x
  2. Step 2: Convert to fraction form
    1,133,442.47/1,564,031.70 = 643,255.89/x
  3. Step 3: Cross multiply
    1,133,442.47x = 1,564,031.70 × 643,255.89
  4. Step 4: Simplify right side
    1,133,442.47x = 1,006,072,597,306.59
  5. Step 5: Solve for x
    x = 1,006,072,597,306.59/1,133,442.47
  6. Step 6: Final answer
    x = 887,625.64

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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.