Home / 865,323.70-1,297,985.55-492,075.70

Finding the Fourth Proportional to 865,323.70, 1,297,985.55 and 492,075.70

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Solution

The fourth proportional to 865,323.70, 1,297,985.55 and 492,075.70 is: 738,113.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,323.70 : 1,297,985.55 = 492,075.70 : x
  2. Step 2: Convert to fraction form
    865,323.70/1,297,985.55 = 492,075.70/x
  3. Step 3: Cross multiply
    865,323.70x = 1,297,985.55 × 492,075.70
  4. Step 4: Simplify right side
    865,323.70x = 638,707,148,106.14
  5. Step 5: Solve for x
    x = 638,707,148,106.14/865,323.70
  6. Step 6: Final answer
    x = 738,113.55

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Double scale
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Similar ratio
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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.