Home / 781,124.47-1,077,900.90-436,900.79

Finding the Fourth Proportional to 781,124.47, 1,077,900.90 and 436,900.79

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Solution

The fourth proportional to 781,124.47, 1,077,900.90 and 436,900.79 is: 602,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,124.47 : 1,077,900.90 = 436,900.79 : x
  2. Step 2: Convert to fraction form
    781,124.47/1,077,900.90 = 436,900.79/x
  3. Step 3: Cross multiply
    781,124.47x = 1,077,900.90 × 436,900.79
  4. Step 4: Simplify right side
    781,124.47x = 470,935,754,751.71
  5. Step 5: Solve for x
    x = 470,935,754,751.71/781,124.47
  6. Step 6: Final answer
    x = 602,894.64

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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.