Home / 705,448.47-972,985.46-490,480.95

Finding the Fourth Proportional to 705,448.47, 972,985.46 and 490,480.95

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Solution

The fourth proportional to 705,448.47, 972,985.46 and 490,480.95 is: 676,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,448.47 : 972,985.46 = 490,480.95 : x
  2. Step 2: Convert to fraction form
    705,448.47/972,985.46 = 490,480.95/x
  3. Step 3: Cross multiply
    705,448.47x = 972,985.46 × 490,480.95
  4. Step 4: Simplify right side
    705,448.47x = 477,230,830,304.58
  5. Step 5: Solve for x
    x = 477,230,830,304.58/705,448.47
  6. Step 6: Final answer
    x = 676,492.83

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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.