Home / 1,160,216.79-1,601,075.03-643,940.40

Finding the Fourth Proportional to 1,160,216.79, 1,601,075.03 and 643,940.40

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Solution

The fourth proportional to 1,160,216.79, 1,601,075.03 and 643,940.40 is: 888,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,216.79 : 1,601,075.03 = 643,940.40 : x
  2. Step 2: Convert to fraction form
    1,160,216.79/1,601,075.03 = 643,940.40/x
  3. Step 3: Cross multiply
    1,160,216.79x = 1,601,075.03 × 643,940.40
  4. Step 4: Simplify right side
    1,160,216.79x = 1,030,996,895,248.21
  5. Step 5: Solve for x
    x = 1,030,996,895,248.21/1,160,216.79
  6. Step 6: Final answer
    x = 888,624.35

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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.