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Finding the Fourth Proportional to 478,875.37, 718,313.04 and 454,929.77

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Solution

The fourth proportional to 478,875.37, 718,313.04 and 454,929.77 is: 682,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,875.37 : 718,313.04 = 454,929.77 : x
  2. Step 2: Convert to fraction form
    478,875.37/718,313.04 = 454,929.77/x
  3. Step 3: Cross multiply
    478,875.37x = 718,313.04 × 454,929.77
  4. Step 4: Simplify right side
    478,875.37x = 326,781,986,075.20
  5. Step 5: Solve for x
    x = 326,781,986,075.20/478,875.37
  6. Step 6: Final answer
    x = 682,394.64

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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.