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Finding the Fourth Proportional to 545,485.36, 752,755.80 and 529,389.04

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Solution

The fourth proportional to 545,485.36, 752,755.80 and 529,389.04 is: 730,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,485.36 : 752,755.80 = 529,389.04 : x
  2. Step 2: Convert to fraction form
    545,485.36/752,755.80 = 529,389.04/x
  3. Step 3: Cross multiply
    545,485.36x = 752,755.80 × 529,389.04
  4. Step 4: Simplify right side
    545,485.36x = 398,500,670,316.43
  5. Step 5: Solve for x
    x = 398,500,670,316.43/545,485.36
  6. Step 6: Final answer
    x = 730,543.29

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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.