Home / 730,064.15-1,007,477.80-407,778.95

Finding the Fourth Proportional to 730,064.15, 1,007,477.80 and 407,778.95

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Solution

The fourth proportional to 730,064.15, 1,007,477.80 and 407,778.95 is: 562,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,064.15 : 1,007,477.80 = 407,778.95 : x
  2. Step 2: Convert to fraction form
    730,064.15/1,007,477.80 = 407,778.95/x
  3. Step 3: Cross multiply
    730,064.15x = 1,007,477.80 × 407,778.95
  4. Step 4: Simplify right side
    730,064.15x = 410,828,239,432.31
  5. Step 5: Solve for x
    x = 410,828,239,432.31/730,064.15
  6. Step 6: Final answer
    x = 562,728.96

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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.