Home / 1,021,685.52-1,532,878.38-390,779.76

Finding the Fourth Proportional to 1,021,685.52, 1,532,878.38 and 390,779.76

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Solution

The fourth proportional to 1,021,685.52, 1,532,878.38 and 390,779.76 is: 586,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,685.52 : 1,532,878.38 = 390,779.76 : x
  2. Step 2: Convert to fraction form
    1,021,685.52/1,532,878.38 = 390,779.76/x
  3. Step 3: Cross multiply
    1,021,685.52x = 1,532,878.38 × 390,779.76
  4. Step 4: Simplify right side
    1,021,685.52x = 599,017,845,445.59
  5. Step 5: Solve for x
    x = 599,017,845,445.59/1,021,685.52
  6. Step 6: Final answer
    x = 586,303.55

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1.5x scale

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.