Home / 745,334.64-1,028,566.08-405,802.08

Finding the Fourth Proportional to 745,334.64, 1,028,566.08 and 405,802.08

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Solution

The fourth proportional to 745,334.64, 1,028,566.08 and 405,802.08 is: 560,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,334.64 : 1,028,566.08 = 405,802.08 : x
  2. Step 2: Convert to fraction form
    745,334.64/1,028,566.08 = 405,802.08/x
  3. Step 3: Cross multiply
    745,334.64x = 1,028,566.08 × 405,802.08
  4. Step 4: Simplify right side
    745,334.64x = 417,394,254,681.45
  5. Step 5: Solve for x
    x = 417,394,254,681.45/745,334.64
  6. Step 6: Final answer
    x = 560,009.20

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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.