Home / 652,019.20-977,445.60-427,487.20

Finding the Fourth Proportional to 652,019.20, 977,445.60 and 427,487.20

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Solution

The fourth proportional to 652,019.20, 977,445.60 and 427,487.20 is: 640,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,019.20 : 977,445.60 = 427,487.20 : x
  2. Step 2: Convert to fraction form
    652,019.20/977,445.60 = 427,487.20/x
  3. Step 3: Cross multiply
    652,019.20x = 977,445.60 × 427,487.20
  4. Step 4: Simplify right side
    652,019.20x = 417,845,482,696.32
  5. Step 5: Solve for x
    x = 417,845,482,696.32/652,019.20
  6. Step 6: Final answer
    x = 640,848.43

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1.5x scale

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.