Home / 803,420.22-1,108,682.80-440,835.06

Finding the Fourth Proportional to 803,420.22, 1,108,682.80 and 440,835.06

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Solution

The fourth proportional to 803,420.22, 1,108,682.80 and 440,835.06 is: 608,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,420.22 : 1,108,682.80 = 440,835.06 : x
  2. Step 2: Convert to fraction form
    803,420.22/1,108,682.80 = 440,835.06/x
  3. Step 3: Cross multiply
    803,420.22x = 1,108,682.80 × 440,835.06
  4. Step 4: Simplify right side
    803,420.22x = 488,746,248,658.97
  5. Step 5: Solve for x
    x = 488,746,248,658.97/803,420.22
  6. Step 6: Final answer
    x = 608,332.02

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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.