Home / 742,115.51-1,024,121.37-402,583.76

Finding the Fourth Proportional to 742,115.51, 1,024,121.37 and 402,583.76

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Solution

The fourth proportional to 742,115.51, 1,024,121.37 and 402,583.76 is: 555,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,115.51 : 1,024,121.37 = 402,583.76 : x
  2. Step 2: Convert to fraction form
    742,115.51/1,024,121.37 = 402,583.76/x
  3. Step 3: Cross multiply
    742,115.51x = 1,024,121.37 × 402,583.76
  4. Step 4: Simplify right side
    742,115.51x = 412,294,631,830.95
  5. Step 5: Solve for x
    x = 412,294,631,830.95/742,115.51
  6. Step 6: Final answer
    x = 555,566.66

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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.