Home / 529,764.90-731,055.40-288,047.67

Finding the Fourth Proportional to 529,764.90, 731,055.40 and 288,047.67

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Solution

The fourth proportional to 529,764.90, 731,055.40 and 288,047.67 is: 397,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,764.90 : 731,055.40 = 288,047.67 : x
  2. Step 2: Convert to fraction form
    529,764.90/731,055.40 = 288,047.67/x
  3. Step 3: Cross multiply
    529,764.90x = 731,055.40 × 288,047.67
  4. Step 4: Simplify right side
    529,764.90x = 210,578,804,610.92
  5. Step 5: Solve for x
    x = 210,578,804,610.92/529,764.90
  6. Step 6: Final answer
    x = 397,494.82

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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.