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Finding the Fourth Proportional to 650,386.80, 974,340.90 and 350,767.80

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Solution

The fourth proportional to 650,386.80, 974,340.90 and 350,767.80 is: 525,483.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,386.80 : 974,340.90 = 350,767.80 : x
  2. Step 2: Convert to fraction form
    650,386.80/974,340.90 = 350,767.80/x
  3. Step 3: Cross multiply
    650,386.80x = 974,340.90 × 350,767.80
  4. Step 4: Simplify right side
    650,386.80x = 341,767,413,943.02
  5. Step 5: Solve for x
    x = 341,767,413,943.02/650,386.80
  6. Step 6: Final answer
    x = 525,483.32

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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.