Finding the Fourth Proportional to 915,117.17, 1,262,937.26 and 507,346.91
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Solution
The fourth proportional to 915,117.17, 1,262,937.26 and 507,346.91 is: 700,180.63
Step by Step Solution
- Step 1: Write the proportion equation
915,117.17 : 1,262,937.26 = 507,346.91 : x - Step 2: Convert to fraction form
915,117.17/1,262,937.26 = 507,346.91/x - Step 3: Cross multiply
915,117.17x = 1,262,937.26 × 507,346.91 - Step 4: Simplify right side
915,117.17x = 640,747,313,848.13 - Step 5: Solve for x
x = 640,747,313,848.13/915,117.17 - Step 6: Final answer
x = 700,180.63
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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.