Finding the Fourth Proportional to 1,354,313.06, 1,868,911.51 and 742,444.91
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Solution
The fourth proportional to 1,354,313.06, 1,868,911.51 and 742,444.91 is: 1,024,551.76
Step by Step Solution
- Step 1: Write the proportion equation
1,354,313.06 : 1,868,911.51 = 742,444.91 : x - Step 2: Convert to fraction form
1,354,313.06/1,868,911.51 = 742,444.91/x - Step 3: Cross multiply
1,354,313.06x = 1,868,911.51 × 742,444.91 - Step 4: Simplify right side
1,354,313.06x = 1,387,563,824,783.13 - Step 5: Solve for x
x = 1,387,563,824,783.13/1,354,313.06 - Step 6: Final answer
x = 1,024,551.76
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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.