Home / 867,947.20-1,301,985.60-306,908.80

Finding the Fourth Proportional to 867,947.20, 1,301,985.60 and 306,908.80

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Solution

The fourth proportional to 867,947.20, 1,301,985.60 and 306,908.80 is: 460,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,947.20 : 1,301,985.60 = 306,908.80 : x
  2. Step 2: Convert to fraction form
    867,947.20/1,301,985.60 = 306,908.80/x
  3. Step 3: Cross multiply
    867,947.20x = 1,301,985.60 × 306,908.80
  4. Step 4: Simplify right side
    867,947.20x = 399,590,838,113.28
  5. Step 5: Solve for x
    x = 399,590,838,113.28/867,947.20
  6. Step 6: Final answer
    x = 460,386.11

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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.