Home / 990,128.24-1,484,954.55-457,137.17

Finding the Fourth Proportional to 990,128.24, 1,484,954.55 and 457,137.17

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Solution

The fourth proportional to 990,128.24, 1,484,954.55 and 457,137.17 is: 685,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,128.24 : 1,484,954.55 = 457,137.17 : x
  2. Step 2: Convert to fraction form
    990,128.24/1,484,954.55 = 457,137.17/x
  3. Step 3: Cross multiply
    990,128.24x = 1,484,954.55 × 457,137.17
  4. Step 4: Simplify right side
    990,128.24x = 678,827,913,140.85
  5. Step 5: Solve for x
    x = 678,827,913,140.85/990,128.24
  6. Step 6: Final answer
    x = 685,595.96

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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.