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Finding the Fourth Proportional to 581,259.60, 802,410.75 and 387,993.87

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Solution

The fourth proportional to 581,259.60, 802,410.75 and 387,993.87 is: 535,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,259.60 : 802,410.75 = 387,993.87 : x
  2. Step 2: Convert to fraction form
    581,259.60/802,410.75 = 387,993.87/x
  3. Step 3: Cross multiply
    581,259.60x = 802,410.75 × 387,993.87
  4. Step 4: Simplify right side
    581,259.60x = 311,330,452,222.10
  5. Step 5: Solve for x
    x = 311,330,452,222.10/581,259.60
  6. Step 6: Final answer
    x = 535,613.44

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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.