Home / 1,293,712.84-1,931,472.87-988,509.70

Finding the Fourth Proportional to 1,293,712.84, 1,931,472.87 and 988,509.70

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Solution

The fourth proportional to 1,293,712.84, 1,931,472.87 and 988,509.70 is: 1,475,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,712.84 : 1,931,472.87 = 988,509.70 : x
  2. Step 2: Convert to fraction form
    1,293,712.84/1,931,472.87 = 988,509.70/x
  3. Step 3: Cross multiply
    1,293,712.84x = 1,931,472.87 × 988,509.70
  4. Step 4: Simplify right side
    1,293,712.84x = 1,909,279,657,624.47
  5. Step 5: Solve for x
    x = 1,909,279,657,624.47/1,293,712.84
  6. Step 6: Final answer
    x = 1,475,814.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.