Home / 500,819.04-690,823.22-409,071.62

Finding the Fourth Proportional to 500,819.04, 690,823.22 and 409,071.62

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Solution

The fourth proportional to 500,819.04, 690,823.22 and 409,071.62 is: 564,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,819.04 : 690,823.22 = 409,071.62 : x
  2. Step 2: Convert to fraction form
    500,819.04/690,823.22 = 409,071.62/x
  3. Step 3: Cross multiply
    500,819.04x = 690,823.22 × 409,071.62
  4. Step 4: Simplify right side
    500,819.04x = 282,596,173,420.72
  5. Step 5: Solve for x
    x = 282,596,173,420.72/500,819.04
  6. Step 6: Final answer
    x = 564,268.03

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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.