Home / 553,267.44-763,488.48-308,246.40

Finding the Fourth Proportional to 553,267.44, 763,488.48 and 308,246.40

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Solution

The fourth proportional to 553,267.44, 763,488.48 and 308,246.40 is: 425,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,267.44 : 763,488.48 = 308,246.40 : x
  2. Step 2: Convert to fraction form
    553,267.44/763,488.48 = 308,246.40/x
  3. Step 3: Cross multiply
    553,267.44x = 763,488.48 × 308,246.40
  4. Step 4: Simplify right side
    553,267.44x = 235,342,575,401.47
  5. Step 5: Solve for x
    x = 235,342,575,401.47/553,267.44
  6. Step 6: Final answer
    x = 425,368.56

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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.