Home / 529,798.04-731,117.36-288,080.76

Finding the Fourth Proportional to 529,798.04, 731,117.36 and 288,080.76

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Solution

The fourth proportional to 529,798.04, 731,117.36 and 288,080.76 is: 397,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,798.04 : 731,117.36 = 288,080.76 : x
  2. Step 2: Convert to fraction form
    529,798.04/731,117.36 = 288,080.76/x
  3. Step 3: Cross multiply
    529,798.04x = 731,117.36 × 288,080.76
  4. Step 4: Simplify right side
    529,798.04x = 210,620,844,717.99
  5. Step 5: Solve for x
    x = 210,620,844,717.99/529,798.04
  6. Step 6: Final answer
    x = 397,549.31

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Double scale
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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.