Home / 990,070.86-1,484,868.36-457,079.94

Finding the Fourth Proportional to 990,070.86, 1,484,868.36 and 457,079.94

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Solution

The fourth proportional to 990,070.86, 1,484,868.36 and 457,079.94 is: 685,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,070.86 : 1,484,868.36 = 457,079.94 : x
  2. Step 2: Convert to fraction form
    990,070.86/1,484,868.36 = 457,079.94/x
  3. Step 3: Cross multiply
    990,070.86x = 1,484,868.36 × 457,079.94
  4. Step 4: Simplify right side
    990,070.86x = 678,703,540,896.70
  5. Step 5: Solve for x
    x = 678,703,540,896.70/990,070.86
  6. Step 6: Final answer
    x = 685,510.07

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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.