Home / 778,466.61-1,074,036.65-456,073.65

Finding the Fourth Proportional to 778,466.61, 1,074,036.65 and 456,073.65

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Solution

The fourth proportional to 778,466.61, 1,074,036.65 and 456,073.65 is: 629,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,466.61 : 1,074,036.65 = 456,073.65 : x
  2. Step 2: Convert to fraction form
    778,466.61/1,074,036.65 = 456,073.65/x
  3. Step 3: Cross multiply
    778,466.61x = 1,074,036.65 × 456,073.65
  4. Step 4: Simplify right side
    778,466.61x = 489,839,812,918.90
  5. Step 5: Solve for x
    x = 489,839,812,918.90/778,466.61
  6. Step 6: Final answer
    x = 629,236.77

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Double scale
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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.