Home / 684,619.80-1,026,929.70-347,712.45

Finding the Fourth Proportional to 684,619.80, 1,026,929.70 and 347,712.45

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Solution

The fourth proportional to 684,619.80, 1,026,929.70 and 347,712.45 is: 521,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,619.80 : 1,026,929.70 = 347,712.45 : x
  2. Step 2: Convert to fraction form
    684,619.80/1,026,929.70 = 347,712.45/x
  3. Step 3: Cross multiply
    684,619.80x = 1,026,929.70 × 347,712.45
  4. Step 4: Simplify right side
    684,619.80x = 357,076,241,964.77
  5. Step 5: Solve for x
    x = 357,076,241,964.77/684,619.80
  6. Step 6: Final answer
    x = 521,568.68

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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.