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Finding the Fourth Proportional to 497,028.40, 744,959.40 and 212,718.40

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Solution

The fourth proportional to 497,028.40, 744,959.40 and 212,718.40 is: 318,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,028.40 : 744,959.40 = 212,718.40 : x
  2. Step 2: Convert to fraction form
    497,028.40/744,959.40 = 212,718.40/x
  3. Step 3: Cross multiply
    497,028.40x = 744,959.40 × 212,718.40
  4. Step 4: Simplify right side
    497,028.40x = 158,466,571,632.96
  5. Step 5: Solve for x
    x = 158,466,571,632.96/497,028.40
  6. Step 6: Final answer
    x = 318,828.00

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1.5x scale

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.