Home / 702,938.10-1,051,949.55-643,955.70

Finding the Fourth Proportional to 702,938.10, 1,051,949.55 and 643,955.70

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Solution

The fourth proportional to 702,938.10, 1,051,949.55 and 643,955.70 is: 963,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,938.10 : 1,051,949.55 = 643,955.70 : x
  2. Step 2: Convert to fraction form
    702,938.10/1,051,949.55 = 643,955.70/x
  3. Step 3: Cross multiply
    702,938.10x = 1,051,949.55 × 643,955.70
  4. Step 4: Simplify right side
    702,938.10x = 677,408,908,834.94
  5. Step 5: Solve for x
    x = 677,408,908,834.94/702,938.10
  6. Step 6: Final answer
    x = 963,682.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.