Home / 993,705.60-1,488,808.80-815,246.40

Finding the Fourth Proportional to 993,705.60, 1,488,808.80 and 815,246.40

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Solution

The fourth proportional to 993,705.60, 1,488,808.80 and 815,246.40 is: 1,221,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,705.60 : 1,488,808.80 = 815,246.40 : x
  2. Step 2: Convert to fraction form
    993,705.60/1,488,808.80 = 815,246.40/x
  3. Step 3: Cross multiply
    993,705.60x = 1,488,808.80 × 815,246.40
  4. Step 4: Simplify right side
    993,705.60x = 1,213,746,014,488.32
  5. Step 5: Solve for x
    x = 1,213,746,014,488.32/993,705.60
  6. Step 6: Final answer
    x = 1,221,434.21

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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.