Home / 1,152,368.64-1,590,270.03-643,070.88

Finding the Fourth Proportional to 1,152,368.64, 1,590,270.03 and 643,070.88

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Solution

The fourth proportional to 1,152,368.64, 1,590,270.03 and 643,070.88 is: 887,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,368.64 : 1,590,270.03 = 643,070.88 : x
  2. Step 2: Convert to fraction form
    1,152,368.64/1,590,270.03 = 643,070.88/x
  3. Step 3: Cross multiply
    1,152,368.64x = 1,590,270.03 × 643,070.88
  4. Step 4: Simplify right side
    1,152,368.64x = 1,022,656,347,629.73
  5. Step 5: Solve for x
    x = 1,022,656,347,629.73/1,152,368.64
  6. Step 6: Final answer
    x = 887,438.54

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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.