Home / 716,891.31-1,075,339.98-290,435.40

Finding the Fourth Proportional to 716,891.31, 1,075,339.98 and 290,435.40

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Solution

The fourth proportional to 716,891.31, 1,075,339.98 and 290,435.40 is: 435,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,891.31 : 1,075,339.98 = 290,435.40 : x
  2. Step 2: Convert to fraction form
    716,891.31/1,075,339.98 = 290,435.40/x
  3. Step 3: Cross multiply
    716,891.31x = 1,075,339.98 × 290,435.40
  4. Step 4: Simplify right side
    716,891.31x = 312,316,797,227.29
  5. Step 5: Solve for x
    x = 312,316,797,227.29/716,891.31
  6. Step 6: Final answer
    x = 435,654.32

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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.