Home / 1,051,709.40-1,577,564.10-989,501.40

Finding the Fourth Proportional to 1,051,709.40, 1,577,564.10 and 989,501.40

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Solution

The fourth proportional to 1,051,709.40, 1,577,564.10 and 989,501.40 is: 1,484,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,709.40 : 1,577,564.10 = 989,501.40 : x
  2. Step 2: Convert to fraction form
    1,051,709.40/1,577,564.10 = 989,501.40/x
  3. Step 3: Cross multiply
    1,051,709.40x = 1,577,564.10 × 989,501.40
  4. Step 4: Simplify right side
    1,051,709.40x = 1,561,001,885,539.74
  5. Step 5: Solve for x
    x = 1,561,001,885,539.74/1,051,709.40
  6. Step 6: Final answer
    x = 1,484,252.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.