Home / 790,949.04-1,091,509.32-428,372.89

Finding the Fourth Proportional to 790,949.04, 1,091,509.32 and 428,372.89

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Solution

The fourth proportional to 790,949.04, 1,091,509.32 and 428,372.89 is: 591,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,949.04 : 1,091,509.32 = 428,372.89 : x
  2. Step 2: Convert to fraction form
    790,949.04/1,091,509.32 = 428,372.89/x
  3. Step 3: Cross multiply
    790,949.04x = 1,091,509.32 × 428,372.89
  4. Step 4: Simplify right side
    790,949.04x = 467,573,001,870.34
  5. Step 5: Solve for x
    x = 467,573,001,870.34/790,949.04
  6. Step 6: Final answer
    x = 591,154.40

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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.