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Finding the Fourth Proportional to 635,072.55, 956,410.48 and 578,385.51

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Solution

The fourth proportional to 635,072.55, 956,410.48 and 578,385.51 is: 871,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,072.55 : 956,410.48 = 578,385.51 : x
  2. Step 2: Convert to fraction form
    635,072.55/956,410.48 = 578,385.51/x
  3. Step 3: Cross multiply
    635,072.55x = 956,410.48 × 578,385.51
  4. Step 4: Simplify right side
    635,072.55x = 553,173,963,244.15
  5. Step 5: Solve for x
    x = 553,173,963,244.15/635,072.55
  6. Step 6: Final answer
    x = 871,040.58

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.