Home / 685,544.60-1,028,526.96-306,784.16

Finding the Fourth Proportional to 685,544.60, 1,028,526.96 and 306,784.16

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Solution

The fourth proportional to 685,544.60, 1,028,526.96 and 306,784.16 is: 460,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,544.60 : 1,028,526.96 = 306,784.16 : x
  2. Step 2: Convert to fraction form
    685,544.60/1,028,526.96 = 306,784.16/x
  3. Step 3: Cross multiply
    685,544.60x = 1,028,526.96 × 306,784.16
  4. Step 4: Simplify right side
    685,544.60x = 315,535,779,460.95
  5. Step 5: Solve for x
    x = 315,535,779,460.95/685,544.60
  6. Step 6: Final answer
    x = 460,270.24

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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.