Home / 917,072.61-1,265,599.73-509,174.47

Finding the Fourth Proportional to 917,072.61, 1,265,599.73 and 509,174.47

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Solution

The fourth proportional to 917,072.61, 1,265,599.73 and 509,174.47 is: 702,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.61 : 1,265,599.73 = 509,174.47 : x
  2. Step 2: Convert to fraction form
    917,072.61/1,265,599.73 = 509,174.47/x
  3. Step 3: Cross multiply
    917,072.61x = 1,265,599.73 × 509,174.47
  4. Step 4: Simplify right side
    917,072.61x = 644,411,076,028.13
  5. Step 5: Solve for x
    x = 644,411,076,028.13/917,072.61
  6. Step 6: Final answer
    x = 702,682.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.