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Finding the Fourth Proportional to 553,619.80, 829,047.30 and 365,613.40

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Solution

The fourth proportional to 553,619.80, 829,047.30 and 365,613.40 is: 547,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,619.80 : 829,047.30 = 365,613.40 : x
  2. Step 2: Convert to fraction form
    553,619.80/829,047.30 = 365,613.40/x
  3. Step 3: Cross multiply
    553,619.80x = 829,047.30 × 365,613.40
  4. Step 4: Simplify right side
    553,619.80x = 303,110,802,113.82
  5. Step 5: Solve for x
    x = 303,110,802,113.82/553,619.80
  6. Step 6: Final answer
    x = 547,507.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.