Home / 529,799.04-731,118.74-288,081.76

Finding the Fourth Proportional to 529,799.04, 731,118.74 and 288,081.76

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Solution

The fourth proportional to 529,799.04, 731,118.74 and 288,081.76 is: 397,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,799.04 : 731,118.74 = 288,081.76 : x
  2. Step 2: Convert to fraction form
    529,799.04/731,118.74 = 288,081.76/x
  3. Step 3: Cross multiply
    529,799.04x = 731,118.74 × 288,081.76
  4. Step 4: Simplify right side
    529,799.04x = 210,621,973,388.18
  5. Step 5: Solve for x
    x = 210,621,973,388.18/529,799.04
  6. Step 6: Final answer
    x = 397,550.69

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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.