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Finding the Fourth Proportional to 882,953.51, 1,218,708.81 and 520,618.73

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Solution

The fourth proportional to 882,953.51, 1,218,708.81 and 520,618.73 is: 718,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,953.51 : 1,218,708.81 = 520,618.73 : x
  2. Step 2: Convert to fraction form
    882,953.51/1,218,708.81 = 520,618.73/x
  3. Step 3: Cross multiply
    882,953.51x = 1,218,708.81 × 520,618.73
  4. Step 4: Simplify right side
    882,953.51x = 634,482,626,808.47
  5. Step 5: Solve for x
    x = 634,482,626,808.47/882,953.51
  6. Step 6: Final answer
    x = 718,591.21

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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.