Home / 771,521.32-1,064,688.17-427,356.10

Finding the Fourth Proportional to 771,521.32, 1,064,688.17 and 427,356.10

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Solution

The fourth proportional to 771,521.32, 1,064,688.17 and 427,356.10 is: 589,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,521.32 : 1,064,688.17 = 427,356.10 : x
  2. Step 2: Convert to fraction form
    771,521.32/1,064,688.17 = 427,356.10/x
  3. Step 3: Cross multiply
    771,521.32x = 1,064,688.17 × 427,356.10
  4. Step 4: Simplify right side
    771,521.32x = 455,000,984,047.34
  5. Step 5: Solve for x
    x = 455,000,984,047.34/771,521.32
  6. Step 6: Final answer
    x = 589,745.19

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Double scale
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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.