Home / 648,104.20-972,156.30-530,006.20

Finding the Fourth Proportional to 648,104.20, 972,156.30 and 530,006.20

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Solution

The fourth proportional to 648,104.20, 972,156.30 and 530,006.20 is: 795,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,104.20 : 972,156.30 = 530,006.20 : x
  2. Step 2: Convert to fraction form
    648,104.20/972,156.30 = 530,006.20/x
  3. Step 3: Cross multiply
    648,104.20x = 972,156.30 × 530,006.20
  4. Step 4: Simplify right side
    648,104.20x = 515,248,866,369.06
  5. Step 5: Solve for x
    x = 515,248,866,369.06/648,104.20
  6. Step 6: Final answer
    x = 795,009.30

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Double scale
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Similar ratio
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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.