Home / 1,408,036.77-2,111,121.74-509,360.20

Finding the Fourth Proportional to 1,408,036.77, 2,111,121.74 and 509,360.20

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Solution

The fourth proportional to 1,408,036.77, 2,111,121.74 and 509,360.20 is: 763,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,036.77 : 2,111,121.74 = 509,360.20 : x
  2. Step 2: Convert to fraction form
    1,408,036.77/2,111,121.74 = 509,360.20/x
  3. Step 3: Cross multiply
    1,408,036.77x = 2,111,121.74 × 509,360.20
  4. Step 4: Simplify right side
    1,408,036.77x = 1,075,321,391,802.85
  5. Step 5: Solve for x
    x = 1,075,321,391,802.85/1,408,036.77
  6. Step 6: Final answer
    x = 763,702.63

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Double scale
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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.