Home / 910,053.90-1,365,145.65-278,966.70

Finding the Fourth Proportional to 910,053.90, 1,365,145.65 and 278,966.70

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Solution

The fourth proportional to 910,053.90, 1,365,145.65 and 278,966.70 is: 418,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,053.90 : 1,365,145.65 = 278,966.70 : x
  2. Step 2: Convert to fraction form
    910,053.90/1,365,145.65 = 278,966.70/x
  3. Step 3: Cross multiply
    910,053.90x = 1,365,145.65 × 278,966.70
  4. Step 4: Simplify right side
    910,053.90x = 380,830,176,999.86
  5. Step 5: Solve for x
    x = 380,830,176,999.86/910,053.90
  6. Step 6: Final answer
    x = 418,469.91

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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.