Home / 908,140.21-1,253,287.38-520,953.02

Finding the Fourth Proportional to 908,140.21, 1,253,287.38 and 520,953.02

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Solution

The fourth proportional to 908,140.21, 1,253,287.38 and 520,953.02 is: 718,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,140.21 : 1,253,287.38 = 520,953.02 : x
  2. Step 2: Convert to fraction form
    908,140.21/1,253,287.38 = 520,953.02/x
  3. Step 3: Cross multiply
    908,140.21x = 1,253,287.38 × 520,953.02
  4. Step 4: Simplify right side
    908,140.21x = 652,903,845,925.85
  5. Step 5: Solve for x
    x = 652,903,845,925.85/908,140.21
  6. Step 6: Final answer
    x = 718,946.08

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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.