Home / 745,836.12-1,118,146.86-346,728.60

Finding the Fourth Proportional to 745,836.12, 1,118,146.86 and 346,728.60

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Solution

The fourth proportional to 745,836.12, 1,118,146.86 and 346,728.60 is: 519,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,836.12 : 1,118,146.86 = 346,728.60 : x
  2. Step 2: Convert to fraction form
    745,836.12/1,118,146.86 = 346,728.60/x
  3. Step 3: Cross multiply
    745,836.12x = 1,118,146.86 × 346,728.60
  4. Step 4: Simplify right side
    745,836.12x = 387,693,495,362.20
  5. Step 5: Solve for x
    x = 387,693,495,362.20/745,836.12
  6. Step 6: Final answer
    x = 519,810.57

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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.