Home / 470,207.36-649,084.77-317,452.45

Finding the Fourth Proportional to 470,207.36, 649,084.77 and 317,452.45

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Solution

The fourth proportional to 470,207.36, 649,084.77 and 317,452.45 is: 438,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,207.36 : 649,084.77 = 317,452.45 : x
  2. Step 2: Convert to fraction form
    470,207.36/649,084.77 = 317,452.45/x
  3. Step 3: Cross multiply
    470,207.36x = 649,084.77 × 317,452.45
  4. Step 4: Simplify right side
    470,207.36x = 206,053,547,248.76
  5. Step 5: Solve for x
    x = 206,053,547,248.76/470,207.36
  6. Step 6: Final answer
    x = 438,218.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.