Home / 877,553.40-1,316,330.10-345,091.80

Finding the Fourth Proportional to 877,553.40, 1,316,330.10 and 345,091.80

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Solution

The fourth proportional to 877,553.40, 1,316,330.10 and 345,091.80 is: 517,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,553.40 : 1,316,330.10 = 345,091.80 : x
  2. Step 2: Convert to fraction form
    877,553.40/1,316,330.10 = 345,091.80/x
  3. Step 3: Cross multiply
    877,553.40x = 1,316,330.10 × 345,091.80
  4. Step 4: Simplify right side
    877,553.40x = 454,254,723,603.18
  5. Step 5: Solve for x
    x = 454,254,723,603.18/877,553.40
  6. Step 6: Final answer
    x = 517,637.70

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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.