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Finding the Fourth Proportional to 660,273.90, 987,786.45 and 572,502.30

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Solution

The fourth proportional to 660,273.90, 987,786.45 and 572,502.30 is: 856,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,273.90 : 987,786.45 = 572,502.30 : x
  2. Step 2: Convert to fraction form
    660,273.90/987,786.45 = 572,502.30/x
  3. Step 3: Cross multiply
    660,273.90x = 987,786.45 × 572,502.30
  4. Step 4: Simplify right side
    660,273.90x = 565,510,014,533.84
  5. Step 5: Solve for x
    x = 565,510,014,533.84/660,273.90
  6. Step 6: Final answer
    x = 856,477.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.