Home / 977,902.75-1,349,510.70-570,287.26

Finding the Fourth Proportional to 977,902.75, 1,349,510.70 and 570,287.26

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Solution

The fourth proportional to 977,902.75, 1,349,510.70 and 570,287.26 is: 786,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,902.75 : 1,349,510.70 = 570,287.26 : x
  2. Step 2: Convert to fraction form
    977,902.75/1,349,510.70 = 570,287.26/x
  3. Step 3: Cross multiply
    977,902.75x = 1,349,510.70 × 570,287.26
  4. Step 4: Simplify right side
    977,902.75x = 769,608,759,443.68
  5. Step 5: Solve for x
    x = 769,608,759,443.68/977,902.75
  6. Step 6: Final answer
    x = 786,999.28

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.