Home / 727,431.60-1,091,341.80-649,088.40

Finding the Fourth Proportional to 727,431.60, 1,091,341.80 and 649,088.40

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Solution

The fourth proportional to 727,431.60, 1,091,341.80 and 649,088.40 is: 973,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,431.60 : 1,091,341.80 = 649,088.40 : x
  2. Step 2: Convert to fraction form
    727,431.60/1,091,341.80 = 649,088.40/x
  3. Step 3: Cross multiply
    727,431.60x = 1,091,341.80 × 649,088.40
  4. Step 4: Simplify right side
    727,431.60x = 708,377,302,815.12
  5. Step 5: Solve for x
    x = 708,377,302,815.12/727,431.60
  6. Step 6: Final answer
    x = 973,806.06

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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.