Home / 918,646.32-1,267,802.90-551,137.20

Finding the Fourth Proportional to 918,646.32, 1,267,802.90 and 551,137.20

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Solution

The fourth proportional to 918,646.32, 1,267,802.90 and 551,137.20 is: 760,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,646.32 : 1,267,802.90 = 551,137.20 : x
  2. Step 2: Convert to fraction form
    918,646.32/1,267,802.90 = 551,137.20/x
  3. Step 3: Cross multiply
    918,646.32x = 1,267,802.90 × 551,137.20
  4. Step 4: Simplify right side
    918,646.32x = 698,733,340,457.88
  5. Step 5: Solve for x
    x = 698,733,340,457.88/918,646.32
  6. Step 6: Final answer
    x = 760,611.92

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Double scale
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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.