Home / 989,028-1,364,858.64-536,319.36

Finding the Fourth Proportional to 989,028, 1,364,858.64 and 536,319.36

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Solution

The fourth proportional to 989,028, 1,364,858.64 and 536,319.36 is: 740,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,028 : 1,364,858.64 = 536,319.36 : x
  2. Step 2: Convert to fraction form
    989,028/1,364,858.64 = 536,319.36/x
  3. Step 3: Cross multiply
    989,028x = 1,364,858.64 × 536,319.36
  4. Step 4: Simplify right side
    989,028x = 732,000,112,295.27
  5. Step 5: Solve for x
    x = 732,000,112,295.27/989,028
  6. Step 6: Final answer
    x = 740,120.72

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1.5x scale

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.