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Finding the Fourth Proportional to 536,538.78, 740,421.09 and 294,820.65

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Solution

The fourth proportional to 536,538.78, 740,421.09 and 294,820.65 is: 406,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,538.78 : 740,421.09 = 294,820.65 : x
  2. Step 2: Convert to fraction form
    536,538.78/740,421.09 = 294,820.65/x
  3. Step 3: Cross multiply
    536,538.78x = 740,421.09 × 294,820.65
  4. Step 4: Simplify right side
    536,538.78x = 218,291,427,027.51
  5. Step 5: Solve for x
    x = 218,291,427,027.51/536,538.78
  6. Step 6: Final answer
    x = 406,851.16

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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.