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Finding the Fourth Proportional to 657,036.16, 906,740.76 and 370,550.32

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Solution

The fourth proportional to 657,036.16, 906,740.76 and 370,550.32 is: 511,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,036.16 : 906,740.76 = 370,550.32 : x
  2. Step 2: Convert to fraction form
    657,036.16/906,740.76 = 370,550.32/x
  3. Step 3: Cross multiply
    657,036.16x = 906,740.76 × 370,550.32
  4. Step 4: Simplify right side
    657,036.16x = 335,993,078,775.04
  5. Step 5: Solve for x
    x = 335,993,078,775.04/657,036.16
  6. Step 6: Final answer
    x = 511,376.85

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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.