Home / 917,368.31-1,265,985.24-509,507.93

Finding the Fourth Proportional to 917,368.31, 1,265,985.24 and 509,507.93

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Solution

The fourth proportional to 917,368.31, 1,265,985.24 and 509,507.93 is: 703,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,368.31 : 1,265,985.24 = 509,507.93 : x
  2. Step 2: Convert to fraction form
    917,368.31/1,265,985.24 = 509,507.93/x
  3. Step 3: Cross multiply
    917,368.31x = 1,265,985.24 × 509,507.93
  4. Step 4: Simplify right side
    917,368.31x = 645,029,519,042.95
  5. Step 5: Solve for x
    x = 645,029,519,042.95/917,368.31
  6. Step 6: Final answer
    x = 703,130.37

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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.