Home / 897,038.38-1,237,903.95-489,139.20

Finding the Fourth Proportional to 897,038.38, 1,237,903.95 and 489,139.20

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Solution

The fourth proportional to 897,038.38, 1,237,903.95 and 489,139.20 is: 675,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,038.38 : 1,237,903.95 = 489,139.20 : x
  2. Step 2: Convert to fraction form
    897,038.38/1,237,903.95 = 489,139.20/x
  3. Step 3: Cross multiply
    897,038.38x = 1,237,903.95 × 489,139.20
  4. Step 4: Simplify right side
    897,038.38x = 605,507,347,779.84
  5. Step 5: Solve for x
    x = 605,507,347,779.84/897,038.38
  6. Step 6: Final answer
    x = 675,007.18

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1.5x scale

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.