Home / 907,109.12-1,360,900.96-338,495.20

Finding the Fourth Proportional to 907,109.12, 1,360,900.96 and 338,495.20

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Solution

The fourth proportional to 907,109.12, 1,360,900.96 and 338,495.20 is: 507,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,109.12 : 1,360,900.96 = 338,495.20 : x
  2. Step 2: Convert to fraction form
    907,109.12/1,360,900.96 = 338,495.20/x
  3. Step 3: Cross multiply
    907,109.12x = 1,360,900.96 × 338,495.20
  4. Step 4: Simplify right side
    907,109.12x = 460,658,438,386.90
  5. Step 5: Solve for x
    x = 460,658,438,386.90/907,109.12
  6. Step 6: Final answer
    x = 507,831.34

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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.