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Finding the Fourth Proportional to 654,655.65, 903,289.41 and 382,670.91

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Solution

The fourth proportional to 654,655.65, 903,289.41 and 382,670.91 is: 528,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,655.65 : 903,289.41 = 382,670.91 : x
  2. Step 2: Convert to fraction form
    654,655.65/903,289.41 = 382,670.91/x
  3. Step 3: Cross multiply
    654,655.65x = 903,289.41 × 382,670.91
  4. Step 4: Simplify right side
    654,655.65x = 345,662,580,518.06
  5. Step 5: Solve for x
    x = 345,662,580,518.06/654,655.65
  6. Step 6: Final answer
    x = 528,006.72

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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.