Home / 480,665.04-721,430.84-256,212.40

Finding the Fourth Proportional to 480,665.04, 721,430.84 and 256,212.40

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Solution

The fourth proportional to 480,665.04, 721,430.84 and 256,212.40 is: 384,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,665.04 : 721,430.84 = 256,212.40 : x
  2. Step 2: Convert to fraction form
    480,665.04/721,430.84 = 256,212.40/x
  3. Step 3: Cross multiply
    480,665.04x = 721,430.84 × 256,212.40
  4. Step 4: Simplify right side
    480,665.04x = 184,839,526,950.42
  5. Step 5: Solve for x
    x = 184,839,526,950.42/480,665.04
  6. Step 6: Final answer
    x = 384,549.55

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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.