Home / 790,462.90-1,090,839.45-427,885.64

Finding the Fourth Proportional to 790,462.90, 1,090,839.45 and 427,885.64

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Solution

The fourth proportional to 790,462.90, 1,090,839.45 and 427,885.64 is: 590,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,462.90 : 1,090,839.45 = 427,885.64 : x
  2. Step 2: Convert to fraction form
    790,462.90/1,090,839.45 = 427,885.64/x
  3. Step 3: Cross multiply
    790,462.90x = 1,090,839.45 × 427,885.64
  4. Step 4: Simplify right side
    790,462.90x = 466,754,536,441.52
  5. Step 5: Solve for x
    x = 466,754,536,441.52/790,462.90
  6. Step 6: Final answer
    x = 590,482.53

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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.