Finding the Fourth Proportional to 607,511.10, 909,298.35 and 430,364.10
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Solution
The fourth proportional to 607,511.10, 909,298.35 and 430,364.10 is: 644,151.80
Step by Step Solution
- Step 1: Write the proportion equation
607,511.10 : 909,298.35 = 430,364.10 : x - Step 2: Convert to fraction form
607,511.10/909,298.35 = 430,364.10/x - Step 3: Cross multiply
607,511.10x = 909,298.35 × 430,364.10 - Step 4: Simplify right side
607,511.10x = 391,329,366,029.24 - Step 5: Solve for x
x = 391,329,366,029.24/607,511.10 - Step 6: Final answer
x = 644,151.80
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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.