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Finding the Fourth Proportional to 1,155,824.80, 1,731,404.40 and 656,605.60

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Solution

The fourth proportional to 1,155,824.80, 1,731,404.40 and 656,605.60 is: 983,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,824.80 : 1,731,404.40 = 656,605.60 : x
  2. Step 2: Convert to fraction form
    1,155,824.80/1,731,404.40 = 656,605.60/x
  3. Step 3: Cross multiply
    1,155,824.80x = 1,731,404.40 × 656,605.60
  4. Step 4: Simplify right side
    1,155,824.80x = 1,136,849,824,904.64
  5. Step 5: Solve for x
    x = 1,136,849,824,904.64/1,155,824.80
  6. Step 6: Final answer
    x = 983,583.17

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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.