Home / 867,000.90-1,300,501.35-548,136.30

Finding the Fourth Proportional to 867,000.90, 1,300,501.35 and 548,136.30

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Solution

The fourth proportional to 867,000.90, 1,300,501.35 and 548,136.30 is: 822,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,000.90 : 1,300,501.35 = 548,136.30 : x
  2. Step 2: Convert to fraction form
    867,000.90/1,300,501.35 = 548,136.30/x
  3. Step 3: Cross multiply
    867,000.90x = 1,300,501.35 × 548,136.30
  4. Step 4: Simplify right side
    867,000.90x = 712,851,998,134.01
  5. Step 5: Solve for x
    x = 712,851,998,134.01/867,000.90
  6. Step 6: Final answer
    x = 822,204.45

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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.