Home / 977,901.75-1,349,509.32-570,286.26

Finding the Fourth Proportional to 977,901.75, 1,349,509.32 and 570,286.26

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Solution

The fourth proportional to 977,901.75, 1,349,509.32 and 570,286.26 is: 786,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,901.75 : 1,349,509.32 = 570,286.26 : x
  2. Step 2: Convert to fraction form
    977,901.75/1,349,509.32 = 570,286.26/x
  3. Step 3: Cross multiply
    977,901.75x = 1,349,509.32 × 570,286.26
  4. Step 4: Simplify right side
    977,901.75x = 769,606,622,937.94
  5. Step 5: Solve for x
    x = 769,606,622,937.94/977,901.75
  6. Step 6: Final answer
    x = 786,997.90

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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.