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Finding the Fourth Proportional to 590,455.20, 885,812.40 and 291,079.20

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Solution

The fourth proportional to 590,455.20, 885,812.40 and 291,079.20 is: 436,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,455.20 : 885,812.40 = 291,079.20 : x
  2. Step 2: Convert to fraction form
    590,455.20/885,812.40 = 291,079.20/x
  3. Step 3: Cross multiply
    590,455.20x = 885,812.40 × 291,079.20
  4. Step 4: Simplify right side
    590,455.20x = 257,841,564,742.08
  5. Step 5: Solve for x
    x = 257,841,564,742.08/590,455.20
  6. Step 6: Final answer
    x = 436,682.69

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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.