Home / 672,030.05-1,008,045.08-618,375.65

Finding the Fourth Proportional to 672,030.05, 1,008,045.08 and 618,375.65

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Solution

The fourth proportional to 672,030.05, 1,008,045.08 and 618,375.65 is: 927,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,030.05 : 1,008,045.08 = 618,375.65 : x
  2. Step 2: Convert to fraction form
    672,030.05/1,008,045.08 = 618,375.65/x
  3. Step 3: Cross multiply
    672,030.05x = 1,008,045.08 × 618,375.65
  4. Step 4: Simplify right side
    672,030.05x = 623,350,528,482.42
  5. Step 5: Solve for x
    x = 623,350,528,482.42/672,030.05
  6. Step 6: Final answer
    x = 927,563.48

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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.