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Finding the Fourth Proportional to 583,694.68, 805,498.66 and 315,422.68

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Solution

The fourth proportional to 583,694.68, 805,498.66 and 315,422.68 is: 435,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,694.68 : 805,498.66 = 315,422.68 : x
  2. Step 2: Convert to fraction form
    583,694.68/805,498.66 = 315,422.68/x
  3. Step 3: Cross multiply
    583,694.68x = 805,498.66 × 315,422.68
  4. Step 4: Simplify right side
    583,694.68x = 254,072,546,073.61
  5. Step 5: Solve for x
    x = 254,072,546,073.61/583,694.68
  6. Step 6: Final answer
    x = 435,283.30

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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.