Home / 820,928.98-1,132,870.04-458,357.86

Finding the Fourth Proportional to 820,928.98, 1,132,870.04 and 458,357.86

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Solution

The fourth proportional to 820,928.98, 1,132,870.04 and 458,357.86 is: 632,527.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,928.98 : 1,132,870.04 = 458,357.86 : x
  2. Step 2: Convert to fraction form
    820,928.98/1,132,870.04 = 458,357.86/x
  3. Step 3: Cross multiply
    820,928.98x = 1,132,870.04 × 458,357.86
  4. Step 4: Simplify right side
    820,928.98x = 519,259,887,192.51
  5. Step 5: Solve for x
    x = 519,259,887,192.51/820,928.98
  6. Step 6: Final answer
    x = 632,527.17

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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.