Home / 689,301.18-950,974.70-427,535.40

Finding the Fourth Proportional to 689,301.18, 950,974.70 and 427,535.40

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Solution

The fourth proportional to 689,301.18, 950,974.70 and 427,535.40 is: 589,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,301.18 : 950,974.70 = 427,535.40 : x
  2. Step 2: Convert to fraction form
    689,301.18/950,974.70 = 427,535.40/x
  3. Step 3: Cross multiply
    689,301.18x = 950,974.70 × 427,535.40
  4. Step 4: Simplify right side
    689,301.18x = 406,575,349,602.22
  5. Step 5: Solve for x
    x = 406,575,349,602.22/689,301.18
  6. Step 6: Final answer
    x = 589,837.02

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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.