Home / 1,298,812.08-1,948,411.76-400,178.64

Finding the Fourth Proportional to 1,298,812.08, 1,948,411.76 and 400,178.64

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Solution

The fourth proportional to 1,298,812.08, 1,948,411.76 and 400,178.64 is: 600,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,812.08 : 1,948,411.76 = 400,178.64 : x
  2. Step 2: Convert to fraction form
    1,298,812.08/1,948,411.76 = 400,178.64/x
  3. Step 3: Cross multiply
    1,298,812.08x = 1,948,411.76 × 400,178.64
  4. Step 4: Simplify right side
    1,298,812.08x = 779,712,768,276.81
  5. Step 5: Solve for x
    x = 779,712,768,276.81/1,298,812.08
  6. Step 6: Final answer
    x = 600,327.62

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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.