Home / 671,353.10-1,007,029.65-645,109.10

Finding the Fourth Proportional to 671,353.10, 1,007,029.65 and 645,109.10

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Solution

The fourth proportional to 671,353.10, 1,007,029.65 and 645,109.10 is: 967,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,353.10 : 1,007,029.65 = 645,109.10 : x
  2. Step 2: Convert to fraction form
    671,353.10/1,007,029.65 = 645,109.10/x
  3. Step 3: Cross multiply
    671,353.10x = 1,007,029.65 × 645,109.10
  4. Step 4: Simplify right side
    671,353.10x = 649,643,991,184.82
  5. Step 5: Solve for x
    x = 649,643,991,184.82/671,353.10
  6. Step 6: Final answer
    x = 967,663.65

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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.