Home / 692,500.20-1,038,750.30-456,109.80

Finding the Fourth Proportional to 692,500.20, 1,038,750.30 and 456,109.80

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Solution

The fourth proportional to 692,500.20, 1,038,750.30 and 456,109.80 is: 684,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,500.20 : 1,038,750.30 = 456,109.80 : x
  2. Step 2: Convert to fraction form
    692,500.20/1,038,750.30 = 456,109.80/x
  3. Step 3: Cross multiply
    692,500.20x = 1,038,750.30 × 456,109.80
  4. Step 4: Simplify right side
    692,500.20x = 473,784,191,582.94
  5. Step 5: Solve for x
    x = 473,784,191,582.94/692,500.20
  6. Step 6: Final answer
    x = 684,164.70

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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.