Home / 755,428.40-1,134,017.40-456,246.80

Finding the Fourth Proportional to 755,428.40, 1,134,017.40 and 456,246.80

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Solution

The fourth proportional to 755,428.40, 1,134,017.40 and 456,246.80 is: 684,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,428.40 : 1,134,017.40 = 456,246.80 : x
  2. Step 2: Convert to fraction form
    755,428.40/1,134,017.40 = 456,246.80/x
  3. Step 3: Cross multiply
    755,428.40x = 1,134,017.40 × 456,246.80
  4. Step 4: Simplify right side
    755,428.40x = 517,391,809,894.32
  5. Step 5: Solve for x
    x = 517,391,809,894.32/755,428.40
  6. Step 6: Final answer
    x = 684,898.54

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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.