Home / 1,152,412.94-1,590,480.34-643,221.02

Finding the Fourth Proportional to 1,152,412.94, 1,590,480.34 and 643,221.02

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Solution

The fourth proportional to 1,152,412.94, 1,590,480.34 and 643,221.02 is: 887,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,412.94 : 1,590,480.34 = 643,221.02 : x
  2. Step 2: Convert to fraction form
    1,152,412.94/1,590,480.34 = 643,221.02/x
  3. Step 3: Cross multiply
    1,152,412.94x = 1,590,480.34 × 643,221.02
  4. Step 4: Simplify right side
    1,152,412.94x = 1,023,030,388,952.90
  5. Step 5: Solve for x
    x = 1,023,030,388,952.90/1,152,412.94
  6. Step 6: Final answer
    x = 887,729.00

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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.