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Finding the Fourth Proportional to 626,944.88, 865,448.81 and 423,271.70

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Solution

The fourth proportional to 626,944.88, 865,448.81 and 423,271.70 is: 584,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,944.88 : 865,448.81 = 423,271.70 : x
  2. Step 2: Convert to fraction form
    626,944.88/865,448.81 = 423,271.70/x
  3. Step 3: Cross multiply
    626,944.88x = 865,448.81 × 423,271.70
  4. Step 4: Simplify right side
    626,944.88x = 366,319,987,460.78
  5. Step 5: Solve for x
    x = 366,319,987,460.78/626,944.88
  6. Step 6: Final answer
    x = 584,293.77

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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.