Home / 812,762.48-1,121,623.80-468,591.59

Finding the Fourth Proportional to 812,762.48, 1,121,623.80 and 468,591.59

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Solution

The fourth proportional to 812,762.48, 1,121,623.80 and 468,591.59 is: 646,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,762.48 : 1,121,623.80 = 468,591.59 : x
  2. Step 2: Convert to fraction form
    812,762.48/1,121,623.80 = 468,591.59/x
  3. Step 3: Cross multiply
    812,762.48x = 1,121,623.80 × 468,591.59
  4. Step 4: Simplify right side
    812,762.48x = 525,583,479,823.84
  5. Step 5: Solve for x
    x = 525,583,479,823.84/812,762.48
  6. Step 6: Final answer
    x = 646,663.07

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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.