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Finding the Fourth Proportional to 1,312,929.84, 1,810,088.34 and 984,848.22

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Solution

The fourth proportional to 1,312,929.84, 1,810,088.34 and 984,848.22 is: 1,357,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,929.84 : 1,810,088.34 = 984,848.22 : x
  2. Step 2: Convert to fraction form
    1,312,929.84/1,810,088.34 = 984,848.22/x
  3. Step 3: Cross multiply
    1,312,929.84x = 1,810,088.34 × 984,848.22
  4. Step 4: Simplify right side
    1,312,929.84x = 1,782,662,279,691.76
  5. Step 5: Solve for x
    x = 1,782,662,279,691.76/1,312,929.84
  6. Step 6: Final answer
    x = 1,357,774.21

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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.