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Finding the Fourth Proportional to 927,440, 1,390,754.88 and 328,202

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Solution

The fourth proportional to 927,440, 1,390,754.88 and 328,202 is: 492,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,440 : 1,390,754.88 = 328,202 : x
  2. Step 2: Convert to fraction form
    927,440/1,390,754.88 = 328,202/x
  3. Step 3: Cross multiply
    927,440x = 1,390,754.88 × 328,202
  4. Step 4: Simplify right side
    927,440x = 456,448,533,125.76
  5. Step 5: Solve for x
    x = 456,448,533,125.76/927,440
  6. Step 6: Final answer
    x = 492,159.64

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