Home / 909,280.10-1,362,148.68-553,411.46

Finding the Fourth Proportional to 909,280.10, 1,362,148.68 and 553,411.46

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Solution

The fourth proportional to 909,280.10, 1,362,148.68 and 553,411.46 is: 829,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,280.10 : 1,362,148.68 = 553,411.46 : x
  2. Step 2: Convert to fraction form
    909,280.10/1,362,148.68 = 553,411.46/x
  3. Step 3: Cross multiply
    909,280.10x = 1,362,148.68 × 553,411.46
  4. Step 4: Simplify right side
    909,280.10x = 753,828,689,735.87
  5. Step 5: Solve for x
    x = 753,828,689,735.87/909,280.10
  6. Step 6: Final answer
    x = 829,039.03

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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.