Home / 742,442.40-1,024,571.26-402,910.66

Finding the Fourth Proportional to 742,442.40, 1,024,571.26 and 402,910.66

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Solution

The fourth proportional to 742,442.40, 1,024,571.26 and 402,910.66 is: 556,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,442.40 : 1,024,571.26 = 402,910.66 : x
  2. Step 2: Convert to fraction form
    742,442.40/1,024,571.26 = 402,910.66/x
  3. Step 3: Cross multiply
    742,442.40x = 1,024,571.26 × 402,910.66
  4. Step 4: Simplify right side
    742,442.40x = 412,810,682,583.63
  5. Step 5: Solve for x
    x = 412,810,682,583.63/742,442.40
  6. Step 6: Final answer
    x = 556,017.12

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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.