Home / 921,063.63-1,271,018.59-507,586.98

Finding the Fourth Proportional to 921,063.63, 1,271,018.59 and 507,586.98

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Solution

The fourth proportional to 921,063.63, 1,271,018.59 and 507,586.98 is: 700,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,063.63 : 1,271,018.59 = 507,586.98 : x
  2. Step 2: Convert to fraction form
    921,063.63/1,271,018.59 = 507,586.98/x
  3. Step 3: Cross multiply
    921,063.63x = 1,271,018.59 × 507,586.98
  4. Step 4: Simplify right side
    921,063.63x = 645,152,487,621.96
  5. Step 5: Solve for x
    x = 645,152,487,621.96/921,063.63
  6. Step 6: Final answer
    x = 700,442.91

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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.