Home / 570,111.96-786,721.74-315,450.36

Finding the Fourth Proportional to 570,111.96, 786,721.74 and 315,450.36

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Solution

The fourth proportional to 570,111.96, 786,721.74 and 315,450.36 is: 435,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,111.96 : 786,721.74 = 315,450.36 : x
  2. Step 2: Convert to fraction form
    570,111.96/786,721.74 = 315,450.36/x
  3. Step 3: Cross multiply
    570,111.96x = 786,721.74 × 315,450.36
  4. Step 4: Simplify right side
    570,111.96x = 248,171,656,102.83
  5. Step 5: Solve for x
    x = 248,171,656,102.83/570,111.96
  6. Step 6: Final answer
    x = 435,303.37

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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.