Home / 594.04-890.34-420.76

Finding the Fourth Proportional to 594.04, 890.34 and 420.76

Calculator

Solution

The fourth proportional to 594.04, 890.34 and 420.76 is: 630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.04 : 890.34 = 420.76 : x
  2. Step 2: Convert to fraction form
    594.04/890.34 = 420.76/x
  3. Step 3: Cross multiply
    594.04x = 890.34 × 420.76
  4. Step 4: Simplify right side
    594.04x = 374,612.90
  5. Step 5: Solve for x
    x = 374,612.90/594.04
  6. Step 6: Final answer
    x = 630.62

Related Problems

Find fourth proportional to 297.02, 445.17 and 210.38
Half scale
Find fourth proportional to 1,188.08, 1,780.67 and 841.51
Double scale
Find fourth proportional to 595.04, 891.83 and 421.76
Similar ratio
Find fourth proportional to 891.06, 1,335.50 and 631.13
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.