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Finding the Fourth Proportional to 578,589.79, 864,365.94 and 374,523.45

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Solution

The fourth proportional to 578,589.79, 864,365.94 and 374,523.45 is: 559,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,589.79 : 864,365.94 = 374,523.45 : x
  2. Step 2: Convert to fraction form
    578,589.79/864,365.94 = 374,523.45/x
  3. Step 3: Cross multiply
    578,589.79x = 864,365.94 × 374,523.45
  4. Step 4: Simplify right side
    578,589.79x = 323,725,312,038.68
  5. Step 5: Solve for x
    x = 323,725,312,038.68/578,589.79
  6. Step 6: Final answer
    x = 559,507.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.