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Finding the Fourth Proportional to 676,780.81, 933,957.53 and 374,974.81

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Solution

The fourth proportional to 676,780.81, 933,957.53 and 374,974.81 is: 517,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,780.81 : 933,957.53 = 374,974.81 : x
  2. Step 2: Convert to fraction form
    676,780.81/933,957.53 = 374,974.81/x
  3. Step 3: Cross multiply
    676,780.81x = 933,957.53 × 374,974.81
  4. Step 4: Simplify right side
    676,780.81x = 350,210,547,359.82
  5. Step 5: Solve for x
    x = 350,210,547,359.82/676,780.81
  6. Step 6: Final answer
    x = 517,465.24

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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.