Home / 495,919.40-684,443.58-302,439.35

Finding the Fourth Proportional to 495,919.40, 684,443.58 and 302,439.35

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Solution

The fourth proportional to 495,919.40, 684,443.58 and 302,439.35 is: 417,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,919.40 : 684,443.58 = 302,439.35 : x
  2. Step 2: Convert to fraction form
    495,919.40/684,443.58 = 302,439.35/x
  3. Step 3: Cross multiply
    495,919.40x = 684,443.58 × 302,439.35
  4. Step 4: Simplify right side
    495,919.40x = 207,002,672,023.83
  5. Step 5: Solve for x
    x = 207,002,672,023.83/495,919.40
  6. Step 6: Final answer
    x = 417,411.93

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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.