Home / 709,543.80-1,064,315.70-210,907.80

Finding the Fourth Proportional to 709,543.80, 1,064,315.70 and 210,907.80

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Solution

The fourth proportional to 709,543.80, 1,064,315.70 and 210,907.80 is: 316,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,543.80 : 1,064,315.70 = 210,907.80 : x
  2. Step 2: Convert to fraction form
    709,543.80/1,064,315.70 = 210,907.80/x
  3. Step 3: Cross multiply
    709,543.80x = 1,064,315.70 × 210,907.80
  4. Step 4: Simplify right side
    709,543.80x = 224,472,482,792.46
  5. Step 5: Solve for x
    x = 224,472,482,792.46/709,543.80
  6. Step 6: Final answer
    x = 316,361.70

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Double scale
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Similar ratio
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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.