Home / 620,564.20-931,721.10-384,368.20

Finding the Fourth Proportional to 620,564.20, 931,721.10 and 384,368.20

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Solution

The fourth proportional to 620,564.20, 931,721.10 and 384,368.20 is: 577,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,564.20 : 931,721.10 = 384,368.20 : x
  2. Step 2: Convert to fraction form
    620,564.20/931,721.10 = 384,368.20/x
  3. Step 3: Cross multiply
    620,564.20x = 931,721.10 × 384,368.20
  4. Step 4: Simplify right side
    620,564.20x = 358,123,962,109.02
  5. Step 5: Solve for x
    x = 358,123,962,109.02/620,564.20
  6. Step 6: Final answer
    x = 577,094.14

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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.