Home / 669,698.10-1,004,547.15-457,121.70

Finding the Fourth Proportional to 669,698.10, 1,004,547.15 and 457,121.70

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Solution

The fourth proportional to 669,698.10, 1,004,547.15 and 457,121.70 is: 685,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,698.10 : 1,004,547.15 = 457,121.70 : x
  2. Step 2: Convert to fraction form
    669,698.10/1,004,547.15 = 457,121.70/x
  3. Step 3: Cross multiply
    669,698.10x = 1,004,547.15 × 457,121.70
  4. Step 4: Simplify right side
    669,698.10x = 459,200,300,938.16
  5. Step 5: Solve for x
    x = 459,200,300,938.16/669,698.10
  6. Step 6: Final answer
    x = 685,682.55

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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.