Home / 771,587.93-1,064,779.85-427,422.83

Finding the Fourth Proportional to 771,587.93, 1,064,779.85 and 427,422.83

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Solution

The fourth proportional to 771,587.93, 1,064,779.85 and 427,422.83 is: 589,837.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,587.93 : 1,064,779.85 = 427,422.83 : x
  2. Step 2: Convert to fraction form
    771,587.93/1,064,779.85 = 427,422.83/x
  3. Step 3: Cross multiply
    771,587.93x = 1,064,779.85 × 427,422.83
  4. Step 4: Simplify right side
    771,587.93x = 455,111,210,154.38
  5. Step 5: Solve for x
    x = 455,111,210,154.38/771,587.93
  6. Step 6: Final answer
    x = 589,837.13

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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.