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Finding the Fourth Proportional to 977,896.50, 1,349,502.03 and 570,281.01

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Solution

The fourth proportional to 977,896.50, 1,349,502.03 and 570,281.01 is: 786,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,896.50 : 1,349,502.03 = 570,281.01 : x
  2. Step 2: Convert to fraction form
    977,896.50/1,349,502.03 = 570,281.01/x
  3. Step 3: Cross multiply
    977,896.50x = 1,349,502.03 × 570,281.01
  4. Step 4: Simplify right side
    977,896.50x = 769,595,380,665.45
  5. Step 5: Solve for x
    x = 769,595,380,665.45/977,896.50
  6. Step 6: Final answer
    x = 786,990.63

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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.