Home / 716,978.59-1,075,463.08-290,508.12

Finding the Fourth Proportional to 716,978.59, 1,075,463.08 and 290,508.12

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Solution

The fourth proportional to 716,978.59, 1,075,463.08 and 290,508.12 is: 435,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,978.59 : 1,075,463.08 = 290,508.12 : x
  2. Step 2: Convert to fraction form
    716,978.59/1,075,463.08 = 290,508.12/x
  3. Step 3: Cross multiply
    716,978.59x = 1,075,463.08 × 290,508.12
  4. Step 4: Simplify right side
    716,978.59x = 312,430,757,500.21
  5. Step 5: Solve for x
    x = 312,430,757,500.21/716,978.59
  6. Step 6: Final answer
    x = 435,760.23

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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.