Home / 1,152,526.78-1,590,695.12-687,410.45

Finding the Fourth Proportional to 1,152,526.78, 1,590,695.12 and 687,410.45

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Solution

The fourth proportional to 1,152,526.78, 1,590,695.12 and 687,410.45 is: 948,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,526.78 : 1,590,695.12 = 687,410.45 : x
  2. Step 2: Convert to fraction form
    1,152,526.78/1,590,695.12 = 687,410.45/x
  3. Step 3: Cross multiply
    1,152,526.78x = 1,590,695.12 × 687,410.45
  4. Step 4: Simplify right side
    1,152,526.78x = 1,093,460,448,252.00
  5. Step 5: Solve for x
    x = 1,093,460,448,252.00/1,152,526.78
  6. Step 6: Final answer
    x = 948,750.58

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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.