Home / 535,458.21-738,928.02-290,442.35

Finding the Fourth Proportional to 535,458.21, 738,928.02 and 290,442.35

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Solution

The fourth proportional to 535,458.21, 738,928.02 and 290,442.35 is: 400,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,458.21 : 738,928.02 = 290,442.35 : x
  2. Step 2: Convert to fraction form
    535,458.21/738,928.02 = 290,442.35/x
  3. Step 3: Cross multiply
    535,458.21x = 738,928.02 × 290,442.35
  4. Step 4: Simplify right side
    535,458.21x = 214,615,991,004.76
  5. Step 5: Solve for x
    x = 214,615,991,004.76/535,458.21
  6. Step 6: Final answer
    x = 400,808.11

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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.