Home / 739,901.10-1,109,851.65-385,607.10

Finding the Fourth Proportional to 739,901.10, 1,109,851.65 and 385,607.10

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Solution

The fourth proportional to 739,901.10, 1,109,851.65 and 385,607.10 is: 578,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,901.10 : 1,109,851.65 = 385,607.10 : x
  2. Step 2: Convert to fraction form
    739,901.10/1,109,851.65 = 385,607.10/x
  3. Step 3: Cross multiply
    739,901.10x = 1,109,851.65 × 385,607.10
  4. Step 4: Simplify right side
    739,901.10x = 427,966,676,186.72
  5. Step 5: Solve for x
    x = 427,966,676,186.72/739,901.10
  6. Step 6: Final answer
    x = 578,410.65

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Double scale
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Similar ratio
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1.5x scale

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.