Home / 1,007,290.10-1,511,202.45-438,427.10

Finding the Fourth Proportional to 1,007,290.10, 1,511,202.45 and 438,427.10

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Solution

The fourth proportional to 1,007,290.10, 1,511,202.45 and 438,427.10 is: 657,756.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,290.10 : 1,511,202.45 = 438,427.10 : x
  2. Step 2: Convert to fraction form
    1,007,290.10/1,511,202.45 = 438,427.10/x
  3. Step 3: Cross multiply
    1,007,290.10x = 1,511,202.45 × 438,427.10
  4. Step 4: Simplify right side
    1,007,290.10x = 662,552,107,666.40
  5. Step 5: Solve for x
    x = 662,552,107,666.40/1,007,290.10
  6. Step 6: Final answer
    x = 657,756.99

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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.