Home / 668,904.86-1,003,510.50-289,889.24

Finding the Fourth Proportional to 668,904.86, 1,003,510.50 and 289,889.24

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Solution

The fourth proportional to 668,904.86, 1,003,510.50 and 289,889.24 is: 434,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,904.86 : 1,003,510.50 = 289,889.24 : x
  2. Step 2: Convert to fraction form
    668,904.86/1,003,510.50 = 289,889.24/x
  3. Step 3: Cross multiply
    668,904.86x = 1,003,510.50 × 289,889.24
  4. Step 4: Simplify right side
    668,904.86x = 290,906,896,177.02
  5. Step 5: Solve for x
    x = 290,906,896,177.02/668,904.86
  6. Step 6: Final answer
    x = 434,900.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.