Home / 1,090,931.12-1,636,357.80-380,956.40

Finding the Fourth Proportional to 1,090,931.12, 1,636,357.80 and 380,956.40

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Solution

The fourth proportional to 1,090,931.12, 1,636,357.80 and 380,956.40 is: 571,421.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,931.12 : 1,636,357.80 = 380,956.40 : x
  2. Step 2: Convert to fraction form
    1,090,931.12/1,636,357.80 = 380,956.40/x
  3. Step 3: Cross multiply
    1,090,931.12x = 1,636,357.80 × 380,956.40
  4. Step 4: Simplify right side
    1,090,931.12x = 623,380,976,599.92
  5. Step 5: Solve for x
    x = 623,380,976,599.92/1,090,931.12
  6. Step 6: Final answer
    x = 571,421.02

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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.