Home / 684,705.40-1,027,058.10-347,615.80

Finding the Fourth Proportional to 684,705.40, 1,027,058.10 and 347,615.80

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Solution

The fourth proportional to 684,705.40, 1,027,058.10 and 347,615.80 is: 521,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,705.40 : 1,027,058.10 = 347,615.80 : x
  2. Step 2: Convert to fraction form
    684,705.40/1,027,058.10 = 347,615.80/x
  3. Step 3: Cross multiply
    684,705.40x = 1,027,058.10 × 347,615.80
  4. Step 4: Simplify right side
    684,705.40x = 357,021,623,077.98
  5. Step 5: Solve for x
    x = 357,021,623,077.98/684,705.40
  6. Step 6: Final answer
    x = 521,423.70

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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.