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Finding the Fourth Proportional to 657,011.28, 906,671.16 and 370,533.84

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Solution

The fourth proportional to 657,011.28, 906,671.16 and 370,533.84 is: 511,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,011.28 : 906,671.16 = 370,533.84 : x
  2. Step 2: Convert to fraction form
    657,011.28/906,671.16 = 370,533.84/x
  3. Step 3: Cross multiply
    657,011.28x = 906,671.16 × 370,533.84
  4. Step 4: Simplify right side
    657,011.28x = 335,952,346,532.05
  5. Step 5: Solve for x
    x = 335,952,346,532.05/657,011.28
  6. Step 6: Final answer
    x = 511,334.21

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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.