Home / 910,802.40-1,364,016.60-489,148.80

Finding the Fourth Proportional to 910,802.40, 1,364,016.60 and 489,148.80

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Solution

The fourth proportional to 910,802.40, 1,364,016.60 and 489,148.80 is: 732,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,802.40 : 1,364,016.60 = 489,148.80 : x
  2. Step 2: Convert to fraction form
    910,802.40/1,364,016.60 = 489,148.80/x
  3. Step 3: Cross multiply
    910,802.40x = 1,364,016.60 × 489,148.80
  4. Step 4: Simplify right side
    910,802.40x = 667,207,083,070.08
  5. Step 5: Solve for x
    x = 667,207,083,070.08/910,802.40
  6. Step 6: Final answer
    x = 732,548.67

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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.