Home / 535,463.20-738,934.90-290,447.35

Finding the Fourth Proportional to 535,463.20, 738,934.90 and 290,447.35

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Solution

The fourth proportional to 535,463.20, 738,934.90 and 290,447.35 is: 400,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,463.20 : 738,934.90 = 290,447.35 : x
  2. Step 2: Convert to fraction form
    535,463.20/738,934.90 = 290,447.35/x
  3. Step 3: Cross multiply
    535,463.20x = 738,934.90 × 290,447.35
  4. Step 4: Simplify right side
    535,463.20x = 214,621,683,527.52
  5. Step 5: Solve for x
    x = 214,621,683,527.52/535,463.20
  6. Step 6: Final answer
    x = 400,815.00

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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.