Finding the Fourth Proportional to 542,953.08, 749,341.72 and 313,509.78
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Solution
The fourth proportional to 542,953.08, 749,341.72 and 313,509.78 is: 432,681.88
Step by Step Solution
- Step 1: Write the proportion equation
542,953.08 : 749,341.72 = 313,509.78 : x - Step 2: Convert to fraction form
542,953.08/749,341.72 = 313,509.78/x - Step 3: Cross multiply
542,953.08x = 749,341.72 × 313,509.78 - Step 4: Simplify right side
542,953.08x = 234,925,959,050.24 - Step 5: Solve for x
x = 234,925,959,050.24/542,953.08 - Step 6: Final answer
x = 432,681.88
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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.