Home / 628,000.10-942,000.15-622,095.20

Finding the Fourth Proportional to 628,000.10, 942,000.15 and 622,095.20

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Solution

The fourth proportional to 628,000.10, 942,000.15 and 622,095.20 is: 933,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,000.10 : 942,000.15 = 622,095.20 : x
  2. Step 2: Convert to fraction form
    628,000.10/942,000.15 = 622,095.20/x
  3. Step 3: Cross multiply
    628,000.10x = 942,000.15 × 622,095.20
  4. Step 4: Simplify right side
    628,000.10x = 586,013,771,714.28
  5. Step 5: Solve for x
    x = 586,013,771,714.28/628,000.10
  6. Step 6: Final answer
    x = 933,142.80

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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.