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Finding the Fourth Proportional to 902,681.48, 1,345,952.02 and 877,880.90

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Solution

The fourth proportional to 902,681.48, 1,345,952.02 and 877,880.90 is: 1,308,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,681.48 : 1,345,952.02 = 877,880.90 : x
  2. Step 2: Convert to fraction form
    902,681.48/1,345,952.02 = 877,880.90/x
  3. Step 3: Cross multiply
    902,681.48x = 1,345,952.02 × 877,880.90
  4. Step 4: Simplify right side
    902,681.48x = 1,181,585,570,674.42
  5. Step 5: Solve for x
    x = 1,181,585,570,674.42/902,681.48
  6. Step 6: Final answer
    x = 1,308,972.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.