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Finding the Fourth Proportional to 529,794.80, 731,106.48 and 288,075.26

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Solution

The fourth proportional to 529,794.80, 731,106.48 and 288,075.26 is: 397,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,794.80 : 731,106.48 = 288,075.26 : x
  2. Step 2: Convert to fraction form
    529,794.80/731,106.48 = 288,075.26/x
  3. Step 3: Cross multiply
    529,794.80x = 731,106.48 × 288,075.26
  4. Step 4: Simplify right side
    529,794.80x = 210,613,689,313.69
  5. Step 5: Solve for x
    x = 210,613,689,313.69/529,794.80
  6. Step 6: Final answer
    x = 397,538.23

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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.