Home / 913,631.60-1,370,447.40-440,364.80

Finding the Fourth Proportional to 913,631.60, 1,370,447.40 and 440,364.80

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Solution

The fourth proportional to 913,631.60, 1,370,447.40 and 440,364.80 is: 660,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,631.60 : 1,370,447.40 = 440,364.80 : x
  2. Step 2: Convert to fraction form
    913,631.60/1,370,447.40 = 440,364.80/x
  3. Step 3: Cross multiply
    913,631.60x = 1,370,447.40 × 440,364.80
  4. Step 4: Simplify right side
    913,631.60x = 603,496,795,211.52
  5. Step 5: Solve for x
    x = 603,496,795,211.52/913,631.60
  6. Step 6: Final answer
    x = 660,547.20

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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.