Home / 803,010.05-1,108,155.47-440,436.89

Finding the Fourth Proportional to 803,010.05, 1,108,155.47 and 440,436.89

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Solution

The fourth proportional to 803,010.05, 1,108,155.47 and 440,436.89 is: 607,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,010.05 : 1,108,155.47 = 440,436.89 : x
  2. Step 2: Convert to fraction form
    803,010.05/1,108,155.47 = 440,436.89/x
  3. Step 3: Cross multiply
    803,010.05x = 1,108,155.47 × 440,436.89
  4. Step 4: Simplify right side
    803,010.05x = 488,072,546,907.55
  5. Step 5: Solve for x
    x = 488,072,546,907.55/803,010.05
  6. Step 6: Final answer
    x = 607,803.78

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Double scale
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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.