Home / 742,521.80-1,113,781.44-269,206.40

Finding the Fourth Proportional to 742,521.80, 1,113,781.44 and 269,206.40

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Solution

The fourth proportional to 742,521.80, 1,113,781.44 and 269,206.40 is: 403,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,521.80 : 1,113,781.44 = 269,206.40 : x
  2. Step 2: Convert to fraction form
    742,521.80/1,113,781.44 = 269,206.40/x
  3. Step 3: Cross multiply
    742,521.80x = 1,113,781.44 × 269,206.40
  4. Step 4: Simplify right side
    742,521.80x = 299,837,091,849.22
  5. Step 5: Solve for x
    x = 299,837,091,849.22/742,521.80
  6. Step 6: Final answer
    x = 403,809.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.