Finding the Fourth Proportional to 747,317.36, 1,031,288.28 and 407,779.76
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Solution
The fourth proportional to 747,317.36, 1,031,288.28 and 407,779.76 is: 562,730.79
Step by Step Solution
- Step 1: Write the proportion equation
747,317.36 : 1,031,288.28 = 407,779.76 : x - Step 2: Convert to fraction form
747,317.36/1,031,288.28 = 407,779.76/x - Step 3: Cross multiply
747,317.36x = 1,031,288.28 × 407,779.76 - Step 4: Simplify right side
747,317.36x = 420,538,487,309.21 - Step 5: Solve for x
x = 420,538,487,309.21/747,317.36 - Step 6: Final answer
x = 562,730.79
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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.