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Finding the Fourth Proportional to 680,037.12, 938,648.88 and 453,682.08

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Solution

The fourth proportional to 680,037.12, 938,648.88 and 453,682.08 is: 626,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,037.12 : 938,648.88 = 453,682.08 : x
  2. Step 2: Convert to fraction form
    680,037.12/938,648.88 = 453,682.08/x
  3. Step 3: Cross multiply
    680,037.12x = 938,648.88 × 453,682.08
  4. Step 4: Simplify right side
    680,037.12x = 425,848,176,268.07
  5. Step 5: Solve for x
    x = 425,848,176,268.07/680,037.12
  6. Step 6: Final answer
    x = 626,213.13

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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.