Home / 528,429.58-724,749.08-506,728.88

Finding the Fourth Proportional to 528,429.58, 724,749.08 and 506,728.88

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Solution

The fourth proportional to 528,429.58, 724,749.08 and 506,728.88 is: 694,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,429.58 : 724,749.08 = 506,728.88 : x
  2. Step 2: Convert to fraction form
    528,429.58/724,749.08 = 506,728.88/x
  3. Step 3: Cross multiply
    528,429.58x = 724,749.08 × 506,728.88
  4. Step 4: Simplify right side
    528,429.58x = 367,251,289,589.43
  5. Step 5: Solve for x
    x = 367,251,289,589.43/528,429.58
  6. Step 6: Final answer
    x = 694,986.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.