Home / 816,501.60-1,224,752.40-317,865.60

Finding the Fourth Proportional to 816,501.60, 1,224,752.40 and 317,865.60

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Solution

The fourth proportional to 816,501.60, 1,224,752.40 and 317,865.60 is: 476,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,501.60 : 1,224,752.40 = 317,865.60 : x
  2. Step 2: Convert to fraction form
    816,501.60/1,224,752.40 = 317,865.60/x
  3. Step 3: Cross multiply
    816,501.60x = 1,224,752.40 × 317,865.60
  4. Step 4: Simplify right side
    816,501.60x = 389,306,656,477.44
  5. Step 5: Solve for x
    x = 389,306,656,477.44/816,501.60
  6. Step 6: Final answer
    x = 476,798.40

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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.