Home / 884,048.79-1,220,133.60-521,561.25

Finding the Fourth Proportional to 884,048.79, 1,220,133.60 and 521,561.25

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Solution

The fourth proportional to 884,048.79, 1,220,133.60 and 521,561.25 is: 719,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,048.79 : 1,220,133.60 = 521,561.25 : x
  2. Step 2: Convert to fraction form
    884,048.79/1,220,133.60 = 521,561.25/x
  3. Step 3: Cross multiply
    884,048.79x = 1,220,133.60 × 521,561.25
  4. Step 4: Simplify right side
    884,048.79x = 636,374,405,583
  5. Step 5: Solve for x
    x = 636,374,405,583/884,048.79
  6. Step 6: Final answer
    x = 719,840.82

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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.