Home / 1,420,931.03-1,960,861.65-776,337.35

Finding the Fourth Proportional to 1,420,931.03, 1,960,861.65 and 776,337.35

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Solution

The fourth proportional to 1,420,931.03, 1,960,861.65 and 776,337.35 is: 1,071,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,931.03 : 1,960,861.65 = 776,337.35 : x
  2. Step 2: Convert to fraction form
    1,420,931.03/1,960,861.65 = 776,337.35/x
  3. Step 3: Cross multiply
    1,420,931.03x = 1,960,861.65 × 776,337.35
  4. Step 4: Simplify right side
    1,420,931.03x = 1,522,290,137,077.63
  5. Step 5: Solve for x
    x = 1,522,290,137,077.63/1,420,931.03
  6. Step 6: Final answer
    x = 1,071,332.88

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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.