Home / 730,374,079.12-1,007,328,525.84-642,079,290.40

Finding the Fourth Proportional to 730,374,079.12, 1,007,328,525.84 and 642,079,290.40

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Solution

The fourth proportional to 730,374,079.12, 1,007,328,525.84 and 642,079,290.40 is: 885,552,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,374,079.12 : 1,007,328,525.84 = 642,079,290.40 : x
  2. Step 2: Convert to fraction form
    730,374,079.12/1,007,328,525.84 = 642,079,290.40/x
  3. Step 3: Cross multiply
    730,374,079.12x = 1,007,328,525.84 × 642,079,290.40
  4. Step 4: Simplify right side
    730,374,079.12x = 646,784,785,071,025,280
  5. Step 5: Solve for x
    x = 646,784,785,071,025,280/730,374,079.12
  6. Step 6: Final answer
    x = 885,552,764.76

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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.