Home / 780,982.19-1,077,437.45-508,950.98

Finding the Fourth Proportional to 780,982.19, 1,077,437.45 and 508,950.98

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Solution

The fourth proportional to 780,982.19, 1,077,437.45 and 508,950.98 is: 702,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,982.19 : 1,077,437.45 = 508,950.98 : x
  2. Step 2: Convert to fraction form
    780,982.19/1,077,437.45 = 508,950.98/x
  3. Step 3: Cross multiply
    780,982.19x = 1,077,437.45 × 508,950.98
  4. Step 4: Simplify right side
    780,982.19x = 548,362,841,951.39
  5. Step 5: Solve for x
    x = 548,362,841,951.39/780,982.19
  6. Step 6: Final answer
    x = 702,145.14

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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.