Home / 990,118.17-1,485,497.11-457,988.27

Finding the Fourth Proportional to 990,118.17, 1,485,497.11 and 457,988.27

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Solution

The fourth proportional to 990,118.17, 1,485,497.11 and 457,988.27 is: 687,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,118.17 : 1,485,497.11 = 457,988.27 : x
  2. Step 2: Convert to fraction form
    990,118.17/1,485,497.11 = 457,988.27/x
  3. Step 3: Cross multiply
    990,118.17x = 1,485,497.11 × 457,988.27
  4. Step 4: Simplify right side
    990,118.17x = 680,340,242,497.08
  5. Step 5: Solve for x
    x = 680,340,242,497.08/990,118.17
  6. Step 6: Final answer
    x = 687,130.35

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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.