Home / 1,540,030.71-2,125,526.70-989,434.71

Finding the Fourth Proportional to 1,540,030.71, 2,125,526.70 and 989,434.71

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Solution

The fourth proportional to 1,540,030.71, 2,125,526.70 and 989,434.71 is: 1,365,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,030.71 : 2,125,526.70 = 989,434.71 : x
  2. Step 2: Convert to fraction form
    1,540,030.71/2,125,526.70 = 989,434.71/x
  3. Step 3: Cross multiply
    1,540,030.71x = 2,125,526.70 × 989,434.71
  4. Step 4: Simplify right side
    1,540,030.71x = 2,103,069,894,011.76
  5. Step 5: Solve for x
    x = 2,103,069,894,011.76/1,540,030.71
  6. Step 6: Final answer
    x = 1,365,602.57

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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.