Home / 990,085.50-1,484,890.38-457,094.46

Finding the Fourth Proportional to 990,085.50, 1,484,890.38 and 457,094.46

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Solution

The fourth proportional to 990,085.50, 1,484,890.38 and 457,094.46 is: 685,531.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,085.50 : 1,484,890.38 = 457,094.46 : x
  2. Step 2: Convert to fraction form
    990,085.50/1,484,890.38 = 457,094.46/x
  3. Step 3: Cross multiply
    990,085.50x = 1,484,890.38 × 457,094.46
  4. Step 4: Simplify right side
    990,085.50x = 678,735,166,405.30
  5. Step 5: Solve for x
    x = 678,735,166,405.30/990,085.50
  6. Step 6: Final answer
    x = 685,531.87

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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.