Home / 913,421.76-1,370,263.80-282,384.78

Finding the Fourth Proportional to 913,421.76, 1,370,263.80 and 282,384.78

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Solution

The fourth proportional to 913,421.76, 1,370,263.80 and 282,384.78 is: 423,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,421.76 : 1,370,263.80 = 282,384.78 : x
  2. Step 2: Convert to fraction form
    913,421.76/1,370,263.80 = 282,384.78/x
  3. Step 3: Cross multiply
    913,421.76x = 1,370,263.80 × 282,384.78
  4. Step 4: Simplify right side
    913,421.76x = 386,941,641,704.96
  5. Step 5: Solve for x
    x = 386,941,641,704.96/913,421.76
  6. Step 6: Final answer
    x = 423,617.72

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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.