Home / 1,038,979.95-1,554,925.16-870,690.30

Finding the Fourth Proportional to 1,038,979.95, 1,554,925.16 and 870,690.30

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Solution

The fourth proportional to 1,038,979.95, 1,554,925.16 and 870,690.30 is: 1,303,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,979.95 : 1,554,925.16 = 870,690.30 : x
  2. Step 2: Convert to fraction form
    1,038,979.95/1,554,925.16 = 870,690.30/x
  3. Step 3: Cross multiply
    1,038,979.95x = 1,554,925.16 × 870,690.30
  4. Step 4: Simplify right side
    1,038,979.95x = 1,353,858,249,684.50
  5. Step 5: Solve for x
    x = 1,353,858,249,684.50/1,038,979.95
  6. Step 6: Final answer
    x = 1,303,064.85

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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.