Home / 529,733.22-731,028.18-288,015.90

Finding the Fourth Proportional to 529,733.22, 731,028.18 and 288,015.90

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Solution

The fourth proportional to 529,733.22, 731,028.18 and 288,015.90 is: 397,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,733.22 : 731,028.18 = 288,015.90 : x
  2. Step 2: Convert to fraction form
    529,733.22/731,028.18 = 288,015.90/x
  3. Step 3: Cross multiply
    529,733.22x = 731,028.18 × 288,015.90
  4. Step 4: Simplify right side
    529,733.22x = 210,547,739,188.06
  5. Step 5: Solve for x
    x = 210,547,739,188.06/529,733.22
  6. Step 6: Final answer
    x = 397,459.95

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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.