Home / 916,318.60-1,372,145.10-874,328.20

Finding the Fourth Proportional to 916,318.60, 1,372,145.10 and 874,328.20

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Solution

The fourth proportional to 916,318.60, 1,372,145.10 and 874,328.20 is: 1,309,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,318.60 : 1,372,145.10 = 874,328.20 : x
  2. Step 2: Convert to fraction form
    916,318.60/1,372,145.10 = 874,328.20/x
  3. Step 3: Cross multiply
    916,318.60x = 1,372,145.10 × 874,328.20
  4. Step 4: Simplify right side
    916,318.60x = 1,199,705,155,421.82
  5. Step 5: Solve for x
    x = 1,199,705,155,421.82/916,318.60
  6. Step 6: Final answer
    x = 1,309,266.40

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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.