Home / 840,325.78-1,159,649.56-458,352.56

Finding the Fourth Proportional to 840,325.78, 1,159,649.56 and 458,352.56

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Solution

The fourth proportional to 840,325.78, 1,159,649.56 and 458,352.56 is: 632,526.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,325.78 : 1,159,649.56 = 458,352.56 : x
  2. Step 2: Convert to fraction form
    840,325.78/1,159,649.56 = 458,352.56/x
  3. Step 3: Cross multiply
    840,325.78x = 1,159,649.56 × 458,352.56
  4. Step 4: Simplify right side
    840,325.78x = 531,528,344,528.87
  5. Step 5: Solve for x
    x = 531,528,344,528.87/840,325.78
  6. Step 6: Final answer
    x = 632,526.52

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Double scale
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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.