Home / 857,695.60-1,286,547.84-289,081.64

Finding the Fourth Proportional to 857,695.60, 1,286,547.84 and 289,081.64

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Solution

The fourth proportional to 857,695.60, 1,286,547.84 and 289,081.64 is: 433,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,695.60 : 1,286,547.84 = 289,081.64 : x
  2. Step 2: Convert to fraction form
    857,695.60/1,286,547.84 = 289,081.64/x
  3. Step 3: Cross multiply
    857,695.60x = 1,286,547.84 × 289,081.64
  4. Step 4: Simplify right side
    857,695.60x = 371,917,362,742.03
  5. Step 5: Solve for x
    x = 371,917,362,742.03/857,695.60
  6. Step 6: Final answer
    x = 433,623.96

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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.