Home / 1,100,417.76-1,650,874.32-390,444.48

Finding the Fourth Proportional to 1,100,417.76, 1,650,874.32 and 390,444.48

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Solution

The fourth proportional to 1,100,417.76, 1,650,874.32 and 390,444.48 is: 585,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,417.76 : 1,650,874.32 = 390,444.48 : x
  2. Step 2: Convert to fraction form
    1,100,417.76/1,650,874.32 = 390,444.48/x
  3. Step 3: Cross multiply
    1,100,417.76x = 1,650,874.32 × 390,444.48
  4. Step 4: Simplify right side
    1,100,417.76x = 644,574,765,417.75
  5. Step 5: Solve for x
    x = 644,574,765,417.75/1,100,417.76
  6. Step 6: Final answer
    x = 585,754.60

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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.