Home / 1,020,336.40-1,528,661.40-872,880.40

Finding the Fourth Proportional to 1,020,336.40, 1,528,661.40 and 872,880.40

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Solution

The fourth proportional to 1,020,336.40, 1,528,661.40 and 872,880.40 is: 1,307,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,336.40 : 1,528,661.40 = 872,880.40 : x
  2. Step 2: Convert to fraction form
    1,020,336.40/1,528,661.40 = 872,880.40/x
  3. Step 3: Cross multiply
    1,020,336.40x = 1,528,661.40 × 872,880.40
  4. Step 4: Simplify right side
    1,020,336.40x = 1,334,338,574,296.56
  5. Step 5: Solve for x
    x = 1,334,338,574,296.56/1,020,336.40
  6. Step 6: Final answer
    x = 1,307,743.77

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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.