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Finding the Fourth Proportional to 570,620.58, 787,480.13 and 315,971.76

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Solution

The fourth proportional to 570,620.58, 787,480.13 and 315,971.76 is: 436,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,620.58 : 787,480.13 = 315,971.76 : x
  2. Step 2: Convert to fraction form
    570,620.58/787,480.13 = 315,971.76/x
  3. Step 3: Cross multiply
    570,620.58x = 787,480.13 × 315,971.76
  4. Step 4: Simplify right side
    570,620.58x = 248,821,482,641.13
  5. Step 5: Solve for x
    x = 248,821,482,641.13/570,620.58
  6. Step 6: Final answer
    x = 436,054.17

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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.