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Finding the Fourth Proportional to 578,047.74, 866,935.47 and 325,437.90

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Solution

The fourth proportional to 578,047.74, 866,935.47 and 325,437.90 is: 488,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,047.74 : 866,935.47 = 325,437.90 : x
  2. Step 2: Convert to fraction form
    578,047.74/866,935.47 = 325,437.90/x
  3. Step 3: Cross multiply
    578,047.74x = 866,935.47 × 325,437.90
  4. Step 4: Simplify right side
    578,047.74x = 282,133,658,792.31
  5. Step 5: Solve for x
    x = 282,133,658,792.31/578,047.74
  6. Step 6: Final answer
    x = 488,080.20

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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.