Home / 1,432,931.20-1,977,444.97-788,337.55

Finding the Fourth Proportional to 1,432,931.20, 1,977,444.97 and 788,337.55

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Solution

The fourth proportional to 1,432,931.20, 1,977,444.97 and 788,337.55 is: 1,087,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,931.20 : 1,977,444.97 = 788,337.55 : x
  2. Step 2: Convert to fraction form
    1,432,931.20/1,977,444.97 = 788,337.55/x
  3. Step 3: Cross multiply
    1,432,931.20x = 1,977,444.97 × 788,337.55
  4. Step 4: Simplify right side
    1,432,931.20x = 1,558,894,109,080.71
  5. Step 5: Solve for x
    x = 1,558,894,109,080.71/1,432,931.20
  6. Step 6: Final answer
    x = 1,087,905.77

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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.