Home / 1,007,745-1,390,688.10-555,036

Finding the Fourth Proportional to 1,007,745, 1,390,688.10 and 555,036

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Solution

The fourth proportional to 1,007,745, 1,390,688.10 and 555,036 is: 765,949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,745 : 1,390,688.10 = 555,036 : x
  2. Step 2: Convert to fraction form
    1,007,745/1,390,688.10 = 555,036/x
  3. Step 3: Cross multiply
    1,007,745x = 1,390,688.10 × 555,036
  4. Step 4: Simplify right side
    1,007,745x = 771,881,960,271.60
  5. Step 5: Solve for x
    x = 771,881,960,271.60/1,007,745
  6. Step 6: Final answer
    x = 765,949.68

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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.