Home / 529,931.33-731,308.68-288,215.66

Finding the Fourth Proportional to 529,931.33, 731,308.68 and 288,215.66

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Solution

The fourth proportional to 529,931.33, 731,308.68 and 288,215.66 is: 397,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,931.33 : 731,308.68 = 288,215.66 : x
  2. Step 2: Convert to fraction form
    529,931.33/731,308.68 = 288,215.66/x
  3. Step 3: Cross multiply
    529,931.33x = 731,308.68 × 288,215.66
  4. Step 4: Simplify right side
    529,931.33x = 210,774,609,492.85
  5. Step 5: Solve for x
    x = 210,774,609,492.85/529,931.33
  6. Step 6: Final answer
    x = 397,739.47

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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.