Home / 529,765.40-731,056.06-288,048.16

Finding the Fourth Proportional to 529,765.40, 731,056.06 and 288,048.16

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Solution

The fourth proportional to 529,765.40, 731,056.06 and 288,048.16 is: 397,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,765.40 : 731,056.06 = 288,048.16 : x
  2. Step 2: Convert to fraction form
    529,765.40/731,056.06 = 288,048.16/x
  3. Step 3: Cross multiply
    529,765.40x = 731,056.06 × 288,048.16
  4. Step 4: Simplify right side
    529,765.40x = 210,579,352,939.85
  5. Step 5: Solve for x
    x = 210,579,352,939.85/529,765.40
  6. Step 6: Final answer
    x = 397,495.48

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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.