Home / 1,369,385.87-1,889,893.76-788,628.02

Finding the Fourth Proportional to 1,369,385.87, 1,889,893.76 and 788,628.02

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Solution

The fourth proportional to 1,369,385.87, 1,889,893.76 and 788,628.02 is: 1,088,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,385.87 : 1,889,893.76 = 788,628.02 : x
  2. Step 2: Convert to fraction form
    1,369,385.87/1,889,893.76 = 788,628.02/x
  3. Step 3: Cross multiply
    1,369,385.87x = 1,889,893.76 × 788,628.02
  4. Step 4: Simplify right side
    1,369,385.87x = 1,490,423,160,566.55
  5. Step 5: Solve for x
    x = 1,490,423,160,566.55/1,369,385.87
  6. Step 6: Final answer
    x = 1,088,388.01

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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.