Home / 671,346.10-1,007,019.15-645,102.10

Finding the Fourth Proportional to 671,346.10, 1,007,019.15 and 645,102.10

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Solution

The fourth proportional to 671,346.10, 1,007,019.15 and 645,102.10 is: 967,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,346.10 : 1,007,019.15 = 645,102.10 : x
  2. Step 2: Convert to fraction form
    671,346.10/1,007,019.15 = 645,102.10/x
  3. Step 3: Cross multiply
    671,346.10x = 1,007,019.15 × 645,102.10
  4. Step 4: Simplify right side
    671,346.10x = 649,630,168,405.22
  5. Step 5: Solve for x
    x = 649,630,168,405.22/671,346.10
  6. Step 6: Final answer
    x = 967,653.15

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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.