Home / 776,115.09-1,164,172.95-349,152.21

Finding the Fourth Proportional to 776,115.09, 1,164,172.95 and 349,152.21

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Solution

The fourth proportional to 776,115.09, 1,164,172.95 and 349,152.21 is: 523,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,115.09 : 1,164,172.95 = 349,152.21 : x
  2. Step 2: Convert to fraction form
    776,115.09/1,164,172.95 = 349,152.21/x
  3. Step 3: Cross multiply
    776,115.09x = 1,164,172.95 × 349,152.21
  4. Step 4: Simplify right side
    776,115.09x = 406,473,558,314.72
  5. Step 5: Solve for x
    x = 406,473,558,314.72/776,115.09
  6. Step 6: Final answer
    x = 523,728.46

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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.