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Finding the Fourth Proportional to 803,462.84, 1,108,775.68 and 440,892.77

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Solution

The fourth proportional to 803,462.84, 1,108,775.68 and 440,892.77 is: 608,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,462.84 : 1,108,775.68 = 440,892.77 : x
  2. Step 2: Convert to fraction form
    803,462.84/1,108,775.68 = 440,892.77/x
  3. Step 3: Cross multiply
    803,462.84x = 1,108,775.68 × 440,892.77
  4. Step 4: Simplify right side
    803,462.84x = 488,851,178,091.89
  5. Step 5: Solve for x
    x = 488,851,178,091.89/803,462.84
  6. Step 6: Final answer
    x = 608,430.35

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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.