Home / 788,497.40-1,182,746.10-489,315.80

Finding the Fourth Proportional to 788,497.40, 1,182,746.10 and 489,315.80

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Solution

The fourth proportional to 788,497.40, 1,182,746.10 and 489,315.80 is: 733,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,497.40 : 1,182,746.10 = 489,315.80 : x
  2. Step 2: Convert to fraction form
    788,497.40/1,182,746.10 = 489,315.80/x
  3. Step 3: Cross multiply
    788,497.40x = 1,182,746.10 × 489,315.80
  4. Step 4: Simplify right side
    788,497.40x = 578,736,354,118.38
  5. Step 5: Solve for x
    x = 578,736,354,118.38/788,497.40
  6. Step 6: Final answer
    x = 733,973.70

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Double scale
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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.