Home / 1,678,934.60-2,316,931.46-914,988.76

Finding the Fourth Proportional to 1,678,934.60, 2,316,931.46 and 914,988.76

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Solution

The fourth proportional to 1,678,934.60, 2,316,931.46 and 914,988.76 is: 1,262,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,934.60 : 2,316,931.46 = 914,988.76 : x
  2. Step 2: Convert to fraction form
    1,678,934.60/2,316,931.46 = 914,988.76/x
  3. Step 3: Cross multiply
    1,678,934.60x = 2,316,931.46 × 914,988.76
  4. Step 4: Simplify right side
    1,678,934.60x = 2,119,966,243,590.39
  5. Step 5: Solve for x
    x = 2,119,966,243,590.39/1,678,934.60
  6. Step 6: Final answer
    x = 1,262,685.42

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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.