Home / 876,421.18-1,315,094.61-621,898.40

Finding the Fourth Proportional to 876,421.18, 1,315,094.61 and 621,898.40

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Solution

The fourth proportional to 876,421.18, 1,315,094.61 and 621,898.40 is: 933,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,421.18 : 1,315,094.61 = 621,898.40 : x
  2. Step 2: Convert to fraction form
    876,421.18/1,315,094.61 = 621,898.40/x
  3. Step 3: Cross multiply
    876,421.18x = 1,315,094.61 × 621,898.40
  4. Step 4: Simplify right side
    876,421.18x = 817,855,233,807.62
  5. Step 5: Solve for x
    x = 817,855,233,807.62/876,421.18
  6. Step 6: Final answer
    x = 933,176.03

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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.