Home / 570,289.15-786,916.65-315,639.73

Finding the Fourth Proportional to 570,289.15, 786,916.65 and 315,639.73

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Solution

The fourth proportional to 570,289.15, 786,916.65 and 315,639.73 is: 435,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,289.15 : 786,916.65 = 315,639.73 : x
  2. Step 2: Convert to fraction form
    570,289.15/786,916.65 = 315,639.73/x
  3. Step 3: Cross multiply
    570,289.15x = 786,916.65 × 315,639.73
  4. Step 4: Simplify right side
    570,289.15x = 248,382,158,938.51
  5. Step 5: Solve for x
    x = 248,382,158,938.51/570,289.15
  6. Step 6: Final answer
    x = 435,537.23

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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.