Home / 719,156.53-1,078,390.23-339,761.26

Finding the Fourth Proportional to 719,156.53, 1,078,390.23 and 339,761.26

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Solution

The fourth proportional to 719,156.53, 1,078,390.23 and 339,761.26 is: 509,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,156.53 : 1,078,390.23 = 339,761.26 : x
  2. Step 2: Convert to fraction form
    719,156.53/1,078,390.23 = 339,761.26/x
  3. Step 3: Cross multiply
    719,156.53x = 1,078,390.23 × 339,761.26
  4. Step 4: Simplify right side
    719,156.53x = 366,395,223,316.49
  5. Step 5: Solve for x
    x = 366,395,223,316.49/719,156.53
  6. Step 6: Final answer
    x = 509,479.10

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Double scale
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1.5x scale

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.