Home / 989,507.76-1,365,520.32-536,798.76

Finding the Fourth Proportional to 989,507.76, 1,365,520.32 and 536,798.76

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Solution

The fourth proportional to 989,507.76, 1,365,520.32 and 536,798.76 is: 740,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,507.76 : 1,365,520.32 = 536,798.76 : x
  2. Step 2: Convert to fraction form
    989,507.76/1,365,520.32 = 536,798.76/x
  3. Step 3: Cross multiply
    989,507.76x = 1,365,520.32 × 536,798.76
  4. Step 4: Simplify right side
    989,507.76x = 733,009,614,530.80
  5. Step 5: Solve for x
    x = 733,009,614,530.80/989,507.76
  6. Step 6: Final answer
    x = 740,782.08

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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.