Home / 1,787,461.60-2,679,681.84-775,818.40

Finding the Fourth Proportional to 1,787,461.60, 2,679,681.84 and 775,818.40

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Solution

The fourth proportional to 1,787,461.60, 2,679,681.84 and 775,818.40 is: 1,163,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,461.60 : 2,679,681.84 = 775,818.40 : x
  2. Step 2: Convert to fraction form
    1,787,461.60/2,679,681.84 = 775,818.40/x
  3. Step 3: Cross multiply
    1,787,461.60x = 2,679,681.84 × 775,818.40
  4. Step 4: Simplify right side
    1,787,461.60x = 2,078,946,477,617.86
  5. Step 5: Solve for x
    x = 2,078,946,477,617.86/1,787,461.60
  6. Step 6: Final answer
    x = 1,163,071.97

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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.