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Finding the Fourth Proportional to 556,672.06, 767,700.21 and 470,811.07

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Solution

The fourth proportional to 556,672.06, 767,700.21 and 470,811.07 is: 649,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,672.06 : 767,700.21 = 470,811.07 : x
  2. Step 2: Convert to fraction form
    556,672.06/767,700.21 = 470,811.07/x
  3. Step 3: Cross multiply
    556,672.06x = 767,700.21 × 470,811.07
  4. Step 4: Simplify right side
    556,672.06x = 361,441,757,309.33
  5. Step 5: Solve for x
    x = 361,441,757,309.33/556,672.06
  6. Step 6: Final answer
    x = 649,290.28

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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.