Home / 780,088.95-1,168,135.70-539,870.31

Finding the Fourth Proportional to 780,088.95, 1,168,135.70 and 539,870.31

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Solution

The fourth proportional to 780,088.95, 1,168,135.70 and 539,870.31 is: 808,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,088.95 : 1,168,135.70 = 539,870.31 : x
  2. Step 2: Convert to fraction form
    780,088.95/1,168,135.70 = 539,870.31/x
  3. Step 3: Cross multiply
    780,088.95x = 1,168,135.70 × 539,870.31
  4. Step 4: Simplify right side
    780,088.95x = 630,641,779,781.72
  5. Step 5: Solve for x
    x = 630,641,779,781.72/780,088.95
  6. Step 6: Final answer
    x = 808,422.91

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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.