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Finding the Fourth Proportional to 675,051.55, 931,538.40 and 384,731.08

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Solution

The fourth proportional to 675,051.55, 931,538.40 and 384,731.08 is: 530,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,051.55 : 931,538.40 = 384,731.08 : x
  2. Step 2: Convert to fraction form
    675,051.55/931,538.40 = 384,731.08/x
  3. Step 3: Cross multiply
    675,051.55x = 931,538.40 × 384,731.08
  4. Step 4: Simplify right side
    675,051.55x = 358,391,774,693.47
  5. Step 5: Solve for x
    x = 358,391,774,693.47/675,051.55
  6. Step 6: Final answer
    x = 530,910.23

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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.