Home / 1,070,802.80-1,477,754.20-640,999.76

Finding the Fourth Proportional to 1,070,802.80, 1,477,754.20 and 640,999.76

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Solution

The fourth proportional to 1,070,802.80, 1,477,754.20 and 640,999.76 is: 884,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,802.80 : 1,477,754.20 = 640,999.76 : x
  2. Step 2: Convert to fraction form
    1,070,802.80/1,477,754.20 = 640,999.76/x
  3. Step 3: Cross multiply
    1,070,802.80x = 1,477,754.20 × 640,999.76
  4. Step 4: Simplify right side
    1,070,802.80x = 947,240,087,538.99
  5. Step 5: Solve for x
    x = 947,240,087,538.99/1,070,802.80
  6. Step 6: Final answer
    x = 884,607.41

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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.