Home / 1,178,145.50-1,767,218.28-291,681.50

Finding the Fourth Proportional to 1,178,145.50, 1,767,218.28 and 291,681.50

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Solution

The fourth proportional to 1,178,145.50, 1,767,218.28 and 291,681.50 is: 437,522.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,145.50 : 1,767,218.28 = 291,681.50 : x
  2. Step 2: Convert to fraction form
    1,178,145.50/1,767,218.28 = 291,681.50/x
  3. Step 3: Cross multiply
    1,178,145.50x = 1,767,218.28 × 291,681.50
  4. Step 4: Simplify right side
    1,178,145.50x = 515,464,878,737.82
  5. Step 5: Solve for x
    x = 515,464,878,737.82/1,178,145.50
  6. Step 6: Final answer
    x = 437,522.26

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Double scale
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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.