Home / 1,129,726.16-1,559,020.24-620,428.52

Finding the Fourth Proportional to 1,129,726.16, 1,559,020.24 and 620,428.52

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Solution

The fourth proportional to 1,129,726.16, 1,559,020.24 and 620,428.52 is: 856,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,726.16 : 1,559,020.24 = 620,428.52 : x
  2. Step 2: Convert to fraction form
    1,129,726.16/1,559,020.24 = 620,428.52/x
  3. Step 3: Cross multiply
    1,129,726.16x = 1,559,020.24 × 620,428.52
  4. Step 4: Simplify right side
    1,129,726.16x = 967,260,620,153.25
  5. Step 5: Solve for x
    x = 967,260,620,153.25/1,129,726.16
  6. Step 6: Final answer
    x = 856,190.34

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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.