Home / 1,224,032.76-1,689,131.40-680,154.48

Finding the Fourth Proportional to 1,224,032.76, 1,689,131.40 and 680,154.48

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Solution

The fourth proportional to 1,224,032.76, 1,689,131.40 and 680,154.48 is: 938,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,032.76 : 1,689,131.40 = 680,154.48 : x
  2. Step 2: Convert to fraction form
    1,224,032.76/1,689,131.40 = 680,154.48/x
  3. Step 3: Cross multiply
    1,224,032.76x = 1,689,131.40 × 680,154.48
  4. Step 4: Simplify right side
    1,224,032.76x = 1,148,870,289,018.67
  5. Step 5: Solve for x
    x = 1,148,870,289,018.67/1,224,032.76
  6. Step 6: Final answer
    x = 938,594.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.