Finding the Fourth Proportional to 513,328.71, 708,420.15 and 295,569.69
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Solution
The fourth proportional to 513,328.71, 708,420.15 and 295,569.69 is: 407,901.45
Step by Step Solution
- Step 1: Write the proportion equation
513,328.71 : 708,420.15 = 295,569.69 : x - Step 2: Convert to fraction form
513,328.71/708,420.15 = 295,569.69/x - Step 3: Cross multiply
513,328.71x = 708,420.15 × 295,569.69 - Step 4: Simplify right side
513,328.71x = 209,387,524,125.25 - Step 5: Solve for x
x = 209,387,524,125.25/513,328.71 - Step 6: Final answer
x = 407,901.45
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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.