Home / 1,152,631.94-1,590,567.36-643,367.12

Finding the Fourth Proportional to 1,152,631.94, 1,590,567.36 and 643,367.12

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Solution

The fourth proportional to 1,152,631.94, 1,590,567.36 and 643,367.12 is: 887,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,631.94 : 1,590,567.36 = 643,367.12 : x
  2. Step 2: Convert to fraction form
    1,152,631.94/1,590,567.36 = 643,367.12/x
  3. Step 3: Cross multiply
    1,152,631.94x = 1,590,567.36 × 643,367.12
  4. Step 4: Simplify right side
    1,152,631.94x = 1,023,318,733,616.37
  5. Step 5: Solve for x
    x = 1,023,318,733,616.37/1,152,631.94
  6. Step 6: Final answer
    x = 887,810.50

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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.