Home / 1,018,728.90-1,528,313.88-308,810.48

Finding the Fourth Proportional to 1,018,728.90, 1,528,313.88 and 308,810.48

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Solution

The fourth proportional to 1,018,728.90, 1,528,313.88 and 308,810.48 is: 463,282.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,728.90 : 1,528,313.88 = 308,810.48 : x
  2. Step 2: Convert to fraction form
    1,018,728.90/1,528,313.88 = 308,810.48/x
  3. Step 3: Cross multiply
    1,018,728.90x = 1,528,313.88 × 308,810.48
  4. Step 4: Simplify right side
    1,018,728.90x = 471,959,335,598.23
  5. Step 5: Solve for x
    x = 471,959,335,598.23/1,018,728.90
  6. Step 6: Final answer
    x = 463,282.56

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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.