Home / 922,271.40-1,383,666.30-390,047.40

Finding the Fourth Proportional to 922,271.40, 1,383,666.30 and 390,047.40

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Solution

The fourth proportional to 922,271.40, 1,383,666.30 and 390,047.40 is: 585,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,271.40 : 1,383,666.30 = 390,047.40 : x
  2. Step 2: Convert to fraction form
    922,271.40/1,383,666.30 = 390,047.40/x
  3. Step 3: Cross multiply
    922,271.40x = 1,383,666.30 × 390,047.40
  4. Step 4: Simplify right side
    922,271.40x = 539,695,442,782.62
  5. Step 5: Solve for x
    x = 539,695,442,782.62/922,271.40
  6. Step 6: Final answer
    x = 585,180.72

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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.