Home / 917,665.29-1,266,580.50-509,907.24

Finding the Fourth Proportional to 917,665.29, 1,266,580.50 and 509,907.24

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Solution

The fourth proportional to 917,665.29, 1,266,580.50 and 509,907.24 is: 703,784.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,665.29 : 1,266,580.50 = 509,907.24 : x
  2. Step 2: Convert to fraction form
    917,665.29/1,266,580.50 = 509,907.24/x
  3. Step 3: Cross multiply
    917,665.29x = 1,266,580.50 × 509,907.24
  4. Step 4: Simplify right side
    917,665.29x = 645,838,566,992.82
  5. Step 5: Solve for x
    x = 645,838,566,992.82/917,665.29
  6. Step 6: Final answer
    x = 703,784.46

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1.5x scale

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.