Home / 702,931.10-1,051,939.05-643,948.70

Finding the Fourth Proportional to 702,931.10, 1,051,939.05 and 643,948.70

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Solution

The fourth proportional to 702,931.10, 1,051,939.05 and 643,948.70 is: 963,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,931.10 : 1,051,939.05 = 643,948.70 : x
  2. Step 2: Convert to fraction form
    702,931.10/1,051,939.05 = 643,948.70/x
  3. Step 3: Cross multiply
    702,931.10x = 1,051,939.05 × 643,948.70
  4. Step 4: Simplify right side
    702,931.10x = 677,394,783,726.74
  5. Step 5: Solve for x
    x = 677,394,783,726.74/702,931.10
  6. Step 6: Final answer
    x = 963,671.67

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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.