Home / 790,327.18-1,090,642.08-427,742.43

Finding the Fourth Proportional to 790,327.18, 1,090,642.08 and 427,742.43

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Solution

The fourth proportional to 790,327.18, 1,090,642.08 and 427,742.43 is: 590,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,327.18 : 1,090,642.08 = 427,742.43 : x
  2. Step 2: Convert to fraction form
    790,327.18/1,090,642.08 = 427,742.43/x
  3. Step 3: Cross multiply
    790,327.18x = 1,090,642.08 × 427,742.43
  4. Step 4: Simplify right side
    790,327.18x = 466,513,893,559.45
  5. Step 5: Solve for x
    x = 466,513,893,559.45/790,327.18
  6. Step 6: Final answer
    x = 590,279.45

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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.