Home / 1,276,919.79-1,762,162.95-703,980.47

Finding the Fourth Proportional to 1,276,919.79, 1,762,162.95 and 703,980.47

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Solution

The fourth proportional to 1,276,919.79, 1,762,162.95 and 703,980.47 is: 971,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,919.79 : 1,762,162.95 = 703,980.47 : x
  2. Step 2: Convert to fraction form
    1,276,919.79/1,762,162.95 = 703,980.47/x
  3. Step 3: Cross multiply
    1,276,919.79x = 1,762,162.95 × 703,980.47
  4. Step 4: Simplify right side
    1,276,919.79x = 1,240,528,292,946.77
  5. Step 5: Solve for x
    x = 1,240,528,292,946.77/1,276,919.79
  6. Step 6: Final answer
    x = 971,500.56

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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.