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Finding the Fourth Proportional to 400,554.72, 602,272.80 and 369,346.32

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Solution

The fourth proportional to 400,554.72, 602,272.80 and 369,346.32 is: 555,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,554.72 : 602,272.80 = 369,346.32 : x
  2. Step 2: Convert to fraction form
    400,554.72/602,272.80 = 369,346.32/x
  3. Step 3: Cross multiply
    400,554.72x = 602,272.80 × 369,346.32
  4. Step 4: Simplify right side
    400,554.72x = 222,447,242,316.10
  5. Step 5: Solve for x
    x = 222,447,242,316.10/400,554.72
  6. Step 6: Final answer
    x = 555,347.95

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1.5x scale

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.