Home / 790,587,280.35-1,090,374,291.27-695,013,438.78

Finding the Fourth Proportional to 790,587,280.35, 1,090,374,291.27 and 695,013,438.78

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Solution

The fourth proportional to 790,587,280.35, 1,090,374,291.27 and 695,013,438.78 is: 958,559,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,587,280.35 : 1,090,374,291.27 = 695,013,438.78 : x
  2. Step 2: Convert to fraction form
    790,587,280.35/1,090,374,291.27 = 695,013,438.78/x
  3. Step 3: Cross multiply
    790,587,280.35x = 1,090,374,291.27 × 695,013,438.78
  4. Step 4: Simplify right side
    790,587,280.35x = 757,824,785,732,867,968
  5. Step 5: Solve for x
    x = 757,824,785,732,867,968/790,587,280.35
  6. Step 6: Final answer
    x = 958,559,294.55

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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.