Home / 676,072.16-933,020.88-389,587.04

Finding the Fourth Proportional to 676,072.16, 933,020.88 and 389,587.04

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Solution

The fourth proportional to 676,072.16, 933,020.88 and 389,587.04 is: 537,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,072.16 : 933,020.88 = 389,587.04 : x
  2. Step 2: Convert to fraction form
    676,072.16/933,020.88 = 389,587.04/x
  3. Step 3: Cross multiply
    676,072.16x = 933,020.88 × 389,587.04
  4. Step 4: Simplify right side
    676,072.16x = 363,492,842,897.40
  5. Step 5: Solve for x
    x = 363,492,842,897.40/676,072.16
  6. Step 6: Final answer
    x = 537,653.91

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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.